diff --git a/.gitignore b/.gitignore
index 8f8f6d1..fe67ca5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,10 +14,14 @@ tv.txt
 *_tv.txt
 
 # *nix/windows test executables
+constants
+constants.exe
 encrypt
 encrypt.exe
 hashsum
 hashsum.exe
+sizes
+sizes.exe
 small
 small.exe
 test
diff --git a/demos/demo_crypt_constants.c b/demos/demo_crypt_constants.c
new file mode 100644
index 0000000..9c41cf7
--- /dev/null
+++ b/demos/demo_crypt_constants.c
@@ -0,0 +1,54 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * guarantee it works.
+ *
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file demo_crypt_constants.c
+
+  Demo how to get various constants to dynamic languages
+  like Python
+
+  Larry Bugbee, February 2013
+*/
+
+
+int main(void) {
+    // given a specific constant name, get and print its value
+    char name[] = "CTR_COUNTER_BIG_ENDIAN";
+    int  value;
+
+    if (crypt_get_constant(name, &value) != 0)
+      exit(EXIT_FAILURE);
+    printf("\n  %s is %d \n\n", name, value);
+
+    // get and print the length of the names (and values) list
+    char *names_list;
+    unsigned long names_list_len;
+
+    if (crypt_list_all_constants(NULL, &names_list_len) != 0)
+      exit(EXIT_FAILURE);
+    printf("  need to allocate %lu bytes \n\n", names_list_len);
+
+    // get and print the names (and values) list
+    if ((names_list = malloc(names_list_len)) == NULL)
+      exit(EXIT_FAILURE);
+    if (crypt_list_all_constants(names_list, &names_list_len) != 0)
+      exit(EXIT_FAILURE);
+    printf("  supported constants:\n\n%s\n\n", names_list);
+    free(names_list);
+
+    return 0;
+}
+
+
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */
diff --git a/demos/demo_crypt_sizes.c b/demos/demo_crypt_sizes.c
new file mode 100644
index 0000000..ea1cef1
--- /dev/null
+++ b/demos/demo_crypt_sizes.c
@@ -0,0 +1,45 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * guarantee it works.
+ *
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file demo_crypt_sizes.c
+
+  Demo how to get various sizes to dynamic languages
+  like Python - Larry Bugbee, February 2013
+*/
+
+
+int main(void) {
+    int rc;
+
+    // given a specific size name, get and print its size
+    char name[] = "ecc_key";
+    int size;
+    rc = crypt_get_size(name, &size);
+    printf("\n  size of '%s' is %d \n\n", name, size);
+
+    // get and print the length of the names (and sizes) list
+    char *sizes_list;
+    unsigned long sizes_list_len;
+    rc = crypt_list_all_sizes(NULL, &sizes_list_len);
+    printf("  need to allocate %lu bytes \n\n", sizes_list_len);
+
+    // get and print the names (and sizes) list
+    sizes_list = malloc(sizes_list_len);
+    rc = crypt_list_all_sizes(sizes_list, &sizes_list_len);
+    printf("  supported sizes:\n\n%s\n\n", sizes_list);
+}
+
+
+/* $Source:  $ */
+/* $Revision:  $ */
+/* $Date:  $ */
diff --git a/demos/demo_dynamic.py b/demos/demo_dynamic.py
new file mode 100755
index 0000000..81f6f8b
--- /dev/null
+++ b/demos/demo_dynamic.py
@@ -0,0 +1,206 @@
+
+
+""" 
+    demo_dynamic.py                                     v1
+    
+    This program demonstrates Python's use of the dynamic 
+    language support additions to LTC, namely access to LTC 
+    constants, struct and union sizes, and the binding of a 
+    math package to LTC.  Also provided are simple code 
+    fragments to illustrate how one might write a Python 
+    wrapper for LTC and how an app might call the wrapper. 
+    This or a similar model should work for Ruby and other 
+    dynamic languages.
+    
+    This instance uses Python's ctypes and requires a single 
+    .dylib linking together LTC and a math library.  Building 
+    a single .dylib is needed because LTC wants a fairly tight 
+    relationship between itself and the mathlib.  (ctypes can 
+    load multiple .dylibs, but it does not support this level 
+    of tight coupling between otherwise independent libraries.)
+    
+    My .dylib was created on OSX with the following steps:
+      
+      1- compile LTC to a .a static lib:
+           CFLAGS="-DLTM_DESC -DUSE_LTM" make
+      
+      2- link LTC and LTM into a single .dylib:
+           ar2dylib_with  tomcrypt  tommath
+         where ar2dylib_with is a shell script that combines 
+         the LTC .a with the LTM .dylib
+    
+    Reminder: you don't need to bind in a math library unless
+              you are going to use LTC functions that depend 
+              on a mathlib.  For example, public key crypto 
+              needs a mathlib; hashing and symmetric encryption 
+              do not.
+    
+    This code was written for Python 2.7.
+    
+    Larry Bugbee
+    March 2014
+
+"""
+
+
+from ctypes import *
+from ctypes.util import find_library
+
+
+#---------------------------------------------------------------
+# load the .dylib
+
+libname = 'tomcrypt'
+libpath = find_library(libname)
+
+print
+print('  demo_dynamic.py')
+print
+print('  path to library %s: %s' % (libname, libpath))
+
+LTC = cdll.LoadLibrary(libpath)
+print('  loaded: %s' % LTC)
+print
+
+
+
+#---------------------------------------------------------------
+# get list of all supported constants followed by a list of all 
+# supported sizes.  One alternative: these lists may be parsed 
+# and used as needed.
+
+if 1:
+    print '  all supported constants and their values:'
+    
+    # get size to allocate for constants output list
+    str_len = c_int(0)
+    ret = LTC.crypt_list_all_constants(None, byref(str_len))
+    print '    need to allocate %d bytes \n' % str_len.value
+    
+    # allocate that size and get (name, size) pairs, each pair
+    # separated by a newline char.
+    names_sizes = c_buffer(str_len.value)
+    ret = LTC.crypt_list_all_constants(names_sizes, byref(str_len))
+    print names_sizes.value
+    print
+    
+    
+if 1:
+    print '  all supported sizes:'
+    
+    # get size to allocate for sizes output list
+    str_len = c_int(0)
+    ret = LTC.crypt_list_all_sizes(None, byref(str_len))
+    print '    need to allocate %d bytes \n' % str_len.value
+    
+    # allocate that size and get (name, size) pairs, each pair
+    # separated by a newline char.
+    names_sizes = c_buffer(str_len.value)
+    ret = LTC.crypt_list_all_sizes(names_sizes, byref(str_len))
+    print names_sizes.value
+    print
+
+
+#---------------------------------------------------------------
+# get individually named constants and sizes
+
+# print selected constants
+if 1:
+    print '\n  selected constants:'
+    
+    names = [
+        'ENDIAN_LITTLE',
+        'ENDIAN_64BITWORD',
+        'PK_PUBLIC',
+        'MAX_RSA_SIZE',
+        'CTR_COUNTER_BIG_ENDIAN',
+    ]
+    for name in names:
+        const_value = c_int(0)
+        rc = LTC.crypt_get_constant(name, byref(const_value))
+        value = const_value.value
+        print '    %-25s  %d' % (name, value)
+
+# print selected sizes
+if 1:
+    print '\n  selected sizes:'
+    
+    names = [
+        'rijndael_key',
+        'rsa_key',
+        'symmetric_CTR',
+        'twofish_key',
+        'ecc_point',
+        'gcm_state',
+        'sha512_state',
+    ]
+    for name in names:
+        size_value = c_int(0)
+        rc = LTC.crypt_get_size(name, byref(size_value))
+        value = size_value.value
+        print '    %-25s  %d' % (name, value)
+
+
+#---------------------------------------------------------------
+#---------------------------------------------------------------
+# ctypes getting a list of this build's supported algorithms 
+# and compiler switches
+
+def get_named_string(lib, name):
+    return c_char_p.in_dll(lib, name).value
+
+if 0:
+    print '\n%s' % ('-'*60)
+    print 'This is a string compiled into LTC showing compile '
+    print 'options and algorithms supported by this build \n'
+    print get_named_string(LTC, 'crypt_build_settings')
+    print
+
+
+
+#---------------------------------------------------------------
+#---------------------------------------------------------------
+# here is an example of how a wrapper can make Python access 
+# more Pythonic
+
+# - - - - - - - - - - - - -
+# a wrapper fragment...
+
+def _get_size(name):
+    size = c_int(0)
+    rc = LTC.crypt_get_size(name, byref(size))
+    return size.value
+
+sha256_state_struct_size = _get_size('sha256_state')
+sha512_state_struct_size = _get_size('sha512_state')
+
+class SHA256(object):
+    def __init__(self):
+        self.state = c_buffer(sha256_state_struct_size)
+        LTC.sha256_init(byref(self.state))
+    def update(self, data):
+        LTC.sha256_process(byref(self.state), data, len(data))
+    def digest(self):
+        md = c_buffer(32)
+        LTC.sha256_done(byref(self.state), byref(md))
+        return md.raw
+
+# - - - - - - - - - - - - -
+# an app fragment...
+
+# from wrapper import *         # uncomment in real life
+
+data = 'hello world'
+
+sha256 = SHA256()
+sha256.update(data)
+md = sha256.digest()
+
+template = '\n\n  the SHA256 digest for "%s" is %s \n'
+print template % (data, md.encode('hex'))
+
+
+
+#---------------------------------------------------------------
+#---------------------------------------------------------------
+#---------------------------------------------------------------
diff --git a/makefile b/makefile
index 7a055f2..dea1ea2 100644
--- a/makefile
+++ b/makefile
@@ -81,6 +81,8 @@ TV=tv_gen
 MULTI=multi
 TIMING=timing
 TEST=test
+SIZES=sizes
+CONSTANTS=constants
 
 #LIBPATH-The directory for libtomcrypt to be installed to.
 #INCPATH-The directory to install the header files for libtomcrypt.
@@ -157,24 +159,26 @@ src/mac/xcbc/xcbc_test.o src/math/fp/ltc_ecc_fp_mulmod.o src/math/gmp_desc.o src
 src/math/multi.o src/math/rand_bn.o src/math/rand_prime.o src/math/tfm_desc.o \
 src/misc/base64/base64_decode.o src/misc/base64/base64_encode.o src/misc/burn_stack.o \
 src/misc/crypt/crypt_argchk.o src/misc/crypt/crypt.o src/misc/crypt/crypt_cipher_descriptor.o \
-src/misc/crypt/crypt_cipher_is_valid.o src/misc/crypt/crypt_find_cipher_any.o \
-src/misc/crypt/crypt_find_cipher.o src/misc/crypt/crypt_find_cipher_id.o \
-src/misc/crypt/crypt_find_hash_any.o src/misc/crypt/crypt_find_hash.o \
-src/misc/crypt/crypt_find_hash_id.o src/misc/crypt/crypt_find_hash_oid.o \
-src/misc/crypt/crypt_find_prng.o src/misc/crypt/crypt_fsa.o src/misc/crypt/crypt_hash_descriptor.o \
-src/misc/crypt/crypt_hash_is_valid.o src/misc/crypt/crypt_ltc_mp_descriptor.o \
+src/misc/crypt/crypt_cipher_is_valid.o src/misc/crypt/crypt_constants.o \
+src/misc/crypt/crypt_find_cipher_any.o src/misc/crypt/crypt_find_cipher.o \
+src/misc/crypt/crypt_find_cipher_id.o src/misc/crypt/crypt_find_hash_any.o \
+src/misc/crypt/crypt_find_hash.o src/misc/crypt/crypt_find_hash_id.o \
+src/misc/crypt/crypt_find_hash_oid.o src/misc/crypt/crypt_find_prng.o src/misc/crypt/crypt_fsa.o \
+src/misc/crypt/crypt_hash_descriptor.o src/misc/crypt/crypt_hash_is_valid.o \
+src/misc/crypt/crypt_inits.o src/misc/crypt/crypt_ltc_mp_descriptor.o \
 src/misc/crypt/crypt_prng_descriptor.o src/misc/crypt/crypt_prng_is_valid.o \
 src/misc/crypt/crypt_register_cipher.o src/misc/crypt/crypt_register_hash.o \
-src/misc/crypt/crypt_register_prng.o src/misc/crypt/crypt_unregister_cipher.o \
-src/misc/crypt/crypt_unregister_hash.o src/misc/crypt/crypt_unregister_prng.o \
-src/misc/error_to_string.o src/misc/hkdf/hkdf.o src/misc/hkdf/hkdf_test.o src/misc/pkcs5/pkcs_5_1.o \
-src/misc/pkcs5/pkcs_5_2.o src/misc/pkcs5/pkcs_5_test.o src/misc/pk_get_oid.o src/misc/zeromem.o \
-src/modes/cbc/cbc_decrypt.o src/modes/cbc/cbc_done.o src/modes/cbc/cbc_encrypt.o \
-src/modes/cbc/cbc_getiv.o src/modes/cbc/cbc_setiv.o src/modes/cbc/cbc_start.o \
-src/modes/cfb/cfb_decrypt.o src/modes/cfb/cfb_done.o src/modes/cfb/cfb_encrypt.o \
-src/modes/cfb/cfb_getiv.o src/modes/cfb/cfb_setiv.o src/modes/cfb/cfb_start.o \
-src/modes/ctr/ctr_decrypt.o src/modes/ctr/ctr_done.o src/modes/ctr/ctr_encrypt.o \
-src/modes/ctr/ctr_getiv.o src/modes/ctr/ctr_setiv.o src/modes/ctr/ctr_start.o src/modes/ctr/ctr_test.o \
+src/misc/crypt/crypt_register_prng.o src/misc/crypt/crypt_sizes.o \
+src/misc/crypt/crypt_unregister_cipher.o src/misc/crypt/crypt_unregister_hash.o \
+src/misc/crypt/crypt_unregister_prng.o src/misc/error_to_string.o src/misc/hkdf/hkdf.o \
+src/misc/hkdf/hkdf_test.o src/misc/pkcs5/pkcs_5_1.o src/misc/pkcs5/pkcs_5_2.o \
+src/misc/pkcs5/pkcs_5_test.o src/misc/pk_get_oid.o src/misc/zeromem.o src/modes/cbc/cbc_decrypt.o \
+src/modes/cbc/cbc_done.o src/modes/cbc/cbc_encrypt.o src/modes/cbc/cbc_getiv.o \
+src/modes/cbc/cbc_setiv.o src/modes/cbc/cbc_start.o src/modes/cfb/cfb_decrypt.o \
+src/modes/cfb/cfb_done.o src/modes/cfb/cfb_encrypt.o src/modes/cfb/cfb_getiv.o \
+src/modes/cfb/cfb_setiv.o src/modes/cfb/cfb_start.o src/modes/ctr/ctr_decrypt.o \
+src/modes/ctr/ctr_done.o src/modes/ctr/ctr_encrypt.o src/modes/ctr/ctr_getiv.o \
+src/modes/ctr/ctr_setiv.o src/modes/ctr/ctr_start.o src/modes/ctr/ctr_test.o \
 src/modes/ecb/ecb_decrypt.o src/modes/ecb/ecb_done.o src/modes/ecb/ecb_encrypt.o \
 src/modes/ecb/ecb_start.o src/modes/f8/f8_decrypt.o src/modes/f8/f8_done.o src/modes/f8/f8_encrypt.o \
 src/modes/f8/f8_getiv.o src/modes/f8/f8_setiv.o src/modes/f8/f8_start.o src/modes/f8/f8_test_mode.o \
@@ -255,6 +259,8 @@ TVS=demos/tv_gen.o
 MULTIS=demos/multi.o
 TIMINGS=demos/timing.o
 TESTS=demos/test.o
+CRYPTSIZES=demos/demo_crypt_sizes.o
+CRYPTCONSTANTS=demos/demo_crypt_constants.o
 
 #Files left over from making the crypt.pdf.
 LEFTOVERS=*.dvi *.log *.aux *.toc *.idx *.ilg *.ind *.out *.lof
@@ -312,6 +318,12 @@ timing: library testprof/$(LIBTEST) $(TIMINGS)
 test: library testprof/$(LIBTEST) $(TESTS)
 	$(CC) $(LDFLAGS) $(TESTS) testprof/$(LIBTEST) $(LIBNAME) $(EXTRALIBS) -o $(TEST)
 
+sizes: library $(CRYPTSIZES)
+	$(CC) $(LDFLAGS) $(CRYPTSIZES) $(LIBNAME) $(EXTRALIBS) -o $(SIZES)
+
+constants: library $(CRYPTCONSTANTS)
+	$(CC) $(LDFLAGS) $(CRYPTCONSTANTS) $(LIBNAME) $(EXTRALIBS) -o $(CONSTANTS)
+
 #This rule installs the library and the header files. This must be run
 #as root in order to have a high enough permission to write to the correct
 #directories and to set the owner and group to root.
@@ -360,6 +372,7 @@ clean:
 	rm -rf `find . -type d -name "*.libs" | xargs`
 	rm -f crypt.aux  crypt.dvi  crypt.idx  crypt.ilg  crypt.ind  crypt.log crypt.toc
 	rm -f $(TV) $(SMALL) $(CRYPT) $(HASH) $(MULTI) $(TIMING) $(TEST)
+	rm -f $(SIZES) $(CONSTANTS)
 	rm -rf doc/doxygen
 	rm -f `find . -type f -name "*.pdf" | grep -FL crypt.pdf | xargs`
 	rm -f *.txt
diff --git a/makefile.icc b/makefile.icc
index f18d1d5..6d5a4d2 100644
--- a/makefile.icc
+++ b/makefile.icc
@@ -142,24 +142,26 @@ src/mac/xcbc/xcbc_test.o src/math/fp/ltc_ecc_fp_mulmod.o src/math/gmp_desc.o src
 src/math/multi.o src/math/rand_bn.o src/math/rand_prime.o src/math/tfm_desc.o \
 src/misc/base64/base64_decode.o src/misc/base64/base64_encode.o src/misc/burn_stack.o \
 src/misc/crypt/crypt_argchk.o src/misc/crypt/crypt.o src/misc/crypt/crypt_cipher_descriptor.o \
-src/misc/crypt/crypt_cipher_is_valid.o src/misc/crypt/crypt_find_cipher_any.o \
-src/misc/crypt/crypt_find_cipher.o src/misc/crypt/crypt_find_cipher_id.o \
-src/misc/crypt/crypt_find_hash_any.o src/misc/crypt/crypt_find_hash.o \
-src/misc/crypt/crypt_find_hash_id.o src/misc/crypt/crypt_find_hash_oid.o \
-src/misc/crypt/crypt_find_prng.o src/misc/crypt/crypt_fsa.o src/misc/crypt/crypt_hash_descriptor.o \
-src/misc/crypt/crypt_hash_is_valid.o src/misc/crypt/crypt_ltc_mp_descriptor.o \
+src/misc/crypt/crypt_cipher_is_valid.o src/misc/crypt/crypt_constants.o \
+src/misc/crypt/crypt_find_cipher_any.o src/misc/crypt/crypt_find_cipher.o \
+src/misc/crypt/crypt_find_cipher_id.o src/misc/crypt/crypt_find_hash_any.o \
+src/misc/crypt/crypt_find_hash.o src/misc/crypt/crypt_find_hash_id.o \
+src/misc/crypt/crypt_find_hash_oid.o src/misc/crypt/crypt_find_prng.o src/misc/crypt/crypt_fsa.o \
+src/misc/crypt/crypt_hash_descriptor.o src/misc/crypt/crypt_hash_is_valid.o \
+src/misc/crypt/crypt_inits.o src/misc/crypt/crypt_ltc_mp_descriptor.o \
 src/misc/crypt/crypt_prng_descriptor.o src/misc/crypt/crypt_prng_is_valid.o \
 src/misc/crypt/crypt_register_cipher.o src/misc/crypt/crypt_register_hash.o \
-src/misc/crypt/crypt_register_prng.o src/misc/crypt/crypt_unregister_cipher.o \
-src/misc/crypt/crypt_unregister_hash.o src/misc/crypt/crypt_unregister_prng.o \
-src/misc/error_to_string.o src/misc/hkdf/hkdf.o src/misc/hkdf/hkdf_test.o src/misc/pkcs5/pkcs_5_1.o \
-src/misc/pkcs5/pkcs_5_2.o src/misc/pkcs5/pkcs_5_test.o src/misc/pk_get_oid.o src/misc/zeromem.o \
-src/modes/cbc/cbc_decrypt.o src/modes/cbc/cbc_done.o src/modes/cbc/cbc_encrypt.o \
-src/modes/cbc/cbc_getiv.o src/modes/cbc/cbc_setiv.o src/modes/cbc/cbc_start.o \
-src/modes/cfb/cfb_decrypt.o src/modes/cfb/cfb_done.o src/modes/cfb/cfb_encrypt.o \
-src/modes/cfb/cfb_getiv.o src/modes/cfb/cfb_setiv.o src/modes/cfb/cfb_start.o \
-src/modes/ctr/ctr_decrypt.o src/modes/ctr/ctr_done.o src/modes/ctr/ctr_encrypt.o \
-src/modes/ctr/ctr_getiv.o src/modes/ctr/ctr_setiv.o src/modes/ctr/ctr_start.o src/modes/ctr/ctr_test.o \
+src/misc/crypt/crypt_register_prng.o src/misc/crypt/crypt_sizes.o \
+src/misc/crypt/crypt_unregister_cipher.o src/misc/crypt/crypt_unregister_hash.o \
+src/misc/crypt/crypt_unregister_prng.o src/misc/error_to_string.o src/misc/hkdf/hkdf.o \
+src/misc/hkdf/hkdf_test.o src/misc/pkcs5/pkcs_5_1.o src/misc/pkcs5/pkcs_5_2.o \
+src/misc/pkcs5/pkcs_5_test.o src/misc/pk_get_oid.o src/misc/zeromem.o src/modes/cbc/cbc_decrypt.o \
+src/modes/cbc/cbc_done.o src/modes/cbc/cbc_encrypt.o src/modes/cbc/cbc_getiv.o \
+src/modes/cbc/cbc_setiv.o src/modes/cbc/cbc_start.o src/modes/cfb/cfb_decrypt.o \
+src/modes/cfb/cfb_done.o src/modes/cfb/cfb_encrypt.o src/modes/cfb/cfb_getiv.o \
+src/modes/cfb/cfb_setiv.o src/modes/cfb/cfb_start.o src/modes/ctr/ctr_decrypt.o \
+src/modes/ctr/ctr_done.o src/modes/ctr/ctr_encrypt.o src/modes/ctr/ctr_getiv.o \
+src/modes/ctr/ctr_setiv.o src/modes/ctr/ctr_start.o src/modes/ctr/ctr_test.o \
 src/modes/ecb/ecb_decrypt.o src/modes/ecb/ecb_done.o src/modes/ecb/ecb_encrypt.o \
 src/modes/ecb/ecb_start.o src/modes/f8/f8_decrypt.o src/modes/f8/f8_done.o src/modes/f8/f8_encrypt.o \
 src/modes/f8/f8_getiv.o src/modes/f8/f8_setiv.o src/modes/f8/f8_start.o src/modes/f8/f8_test_mode.o \
diff --git a/makefile.mingw b/makefile.mingw
index bae91a5..888fac2 100644
--- a/makefile.mingw
+++ b/makefile.mingw
@@ -89,24 +89,26 @@ src/mac/xcbc/xcbc_test.o src/math/fp/ltc_ecc_fp_mulmod.o src/math/gmp_desc.o src
 src/math/multi.o src/math/rand_bn.o src/math/rand_prime.o src/math/tfm_desc.o \
 src/misc/base64/base64_decode.o src/misc/base64/base64_encode.o src/misc/burn_stack.o \
 src/misc/crypt/crypt_argchk.o src/misc/crypt/crypt.o src/misc/crypt/crypt_cipher_descriptor.o \
-src/misc/crypt/crypt_cipher_is_valid.o src/misc/crypt/crypt_find_cipher_any.o \
-src/misc/crypt/crypt_find_cipher.o src/misc/crypt/crypt_find_cipher_id.o \
-src/misc/crypt/crypt_find_hash_any.o src/misc/crypt/crypt_find_hash.o \
-src/misc/crypt/crypt_find_hash_id.o src/misc/crypt/crypt_find_hash_oid.o \
-src/misc/crypt/crypt_find_prng.o src/misc/crypt/crypt_fsa.o src/misc/crypt/crypt_hash_descriptor.o \
-src/misc/crypt/crypt_hash_is_valid.o src/misc/crypt/crypt_ltc_mp_descriptor.o \
+src/misc/crypt/crypt_cipher_is_valid.o src/misc/crypt/crypt_constants.o \
+src/misc/crypt/crypt_find_cipher_any.o src/misc/crypt/crypt_find_cipher.o \
+src/misc/crypt/crypt_find_cipher_id.o src/misc/crypt/crypt_find_hash_any.o \
+src/misc/crypt/crypt_find_hash.o src/misc/crypt/crypt_find_hash_id.o \
+src/misc/crypt/crypt_find_hash_oid.o src/misc/crypt/crypt_find_prng.o src/misc/crypt/crypt_fsa.o \
+src/misc/crypt/crypt_hash_descriptor.o src/misc/crypt/crypt_hash_is_valid.o \
+src/misc/crypt/crypt_inits.o src/misc/crypt/crypt_ltc_mp_descriptor.o \
 src/misc/crypt/crypt_prng_descriptor.o src/misc/crypt/crypt_prng_is_valid.o \
 src/misc/crypt/crypt_register_cipher.o src/misc/crypt/crypt_register_hash.o \
-src/misc/crypt/crypt_register_prng.o src/misc/crypt/crypt_unregister_cipher.o \
-src/misc/crypt/crypt_unregister_hash.o src/misc/crypt/crypt_unregister_prng.o \
-src/misc/error_to_string.o src/misc/hkdf/hkdf.o src/misc/hkdf/hkdf_test.o src/misc/pkcs5/pkcs_5_1.o \
-src/misc/pkcs5/pkcs_5_2.o src/misc/pkcs5/pkcs_5_test.o src/misc/pk_get_oid.o src/misc/zeromem.o \
-src/modes/cbc/cbc_decrypt.o src/modes/cbc/cbc_done.o src/modes/cbc/cbc_encrypt.o \
-src/modes/cbc/cbc_getiv.o src/modes/cbc/cbc_setiv.o src/modes/cbc/cbc_start.o \
-src/modes/cfb/cfb_decrypt.o src/modes/cfb/cfb_done.o src/modes/cfb/cfb_encrypt.o \
-src/modes/cfb/cfb_getiv.o src/modes/cfb/cfb_setiv.o src/modes/cfb/cfb_start.o \
-src/modes/ctr/ctr_decrypt.o src/modes/ctr/ctr_done.o src/modes/ctr/ctr_encrypt.o \
-src/modes/ctr/ctr_getiv.o src/modes/ctr/ctr_setiv.o src/modes/ctr/ctr_start.o src/modes/ctr/ctr_test.o \
+src/misc/crypt/crypt_register_prng.o src/misc/crypt/crypt_sizes.o \
+src/misc/crypt/crypt_unregister_cipher.o src/misc/crypt/crypt_unregister_hash.o \
+src/misc/crypt/crypt_unregister_prng.o src/misc/error_to_string.o src/misc/hkdf/hkdf.o \
+src/misc/hkdf/hkdf_test.o src/misc/pkcs5/pkcs_5_1.o src/misc/pkcs5/pkcs_5_2.o \
+src/misc/pkcs5/pkcs_5_test.o src/misc/pk_get_oid.o src/misc/zeromem.o src/modes/cbc/cbc_decrypt.o \
+src/modes/cbc/cbc_done.o src/modes/cbc/cbc_encrypt.o src/modes/cbc/cbc_getiv.o \
+src/modes/cbc/cbc_setiv.o src/modes/cbc/cbc_start.o src/modes/cfb/cfb_decrypt.o \
+src/modes/cfb/cfb_done.o src/modes/cfb/cfb_encrypt.o src/modes/cfb/cfb_getiv.o \
+src/modes/cfb/cfb_setiv.o src/modes/cfb/cfb_start.o src/modes/ctr/ctr_decrypt.o \
+src/modes/ctr/ctr_done.o src/modes/ctr/ctr_encrypt.o src/modes/ctr/ctr_getiv.o \
+src/modes/ctr/ctr_setiv.o src/modes/ctr/ctr_start.o src/modes/ctr/ctr_test.o \
 src/modes/ecb/ecb_decrypt.o src/modes/ecb/ecb_done.o src/modes/ecb/ecb_encrypt.o \
 src/modes/ecb/ecb_start.o src/modes/f8/f8_decrypt.o src/modes/f8/f8_done.o src/modes/f8/f8_encrypt.o \
 src/modes/f8/f8_getiv.o src/modes/f8/f8_setiv.o src/modes/f8/f8_start.o src/modes/f8/f8_test_mode.o \
diff --git a/makefile.msvc b/makefile.msvc
index 13e25eb..afb1ad6 100644
--- a/makefile.msvc
+++ b/makefile.msvc
@@ -47,24 +47,26 @@ src/mac/xcbc/xcbc_test.obj src/math/fp/ltc_ecc_fp_mulmod.obj src/math/gmp_desc.o
 src/math/multi.obj src/math/rand_bn.obj src/math/rand_prime.obj src/math/tfm_desc.obj \
 src/misc/base64/base64_decode.obj src/misc/base64/base64_encode.obj src/misc/burn_stack.obj \
 src/misc/crypt/crypt_argchk.obj src/misc/crypt/crypt.obj src/misc/crypt/crypt_cipher_descriptor.obj \
-src/misc/crypt/crypt_cipher_is_valid.obj src/misc/crypt/crypt_find_cipher_any.obj \
-src/misc/crypt/crypt_find_cipher.obj src/misc/crypt/crypt_find_cipher_id.obj \
-src/misc/crypt/crypt_find_hash_any.obj src/misc/crypt/crypt_find_hash.obj \
-src/misc/crypt/crypt_find_hash_id.obj src/misc/crypt/crypt_find_hash_oid.obj \
-src/misc/crypt/crypt_find_prng.obj src/misc/crypt/crypt_fsa.obj src/misc/crypt/crypt_hash_descriptor.obj \
-src/misc/crypt/crypt_hash_is_valid.obj src/misc/crypt/crypt_ltc_mp_descriptor.obj \
+src/misc/crypt/crypt_cipher_is_valid.obj src/misc/crypt/crypt_constants.obj \
+src/misc/crypt/crypt_find_cipher_any.obj src/misc/crypt/crypt_find_cipher.obj \
+src/misc/crypt/crypt_find_cipher_id.obj src/misc/crypt/crypt_find_hash_any.obj \
+src/misc/crypt/crypt_find_hash.obj src/misc/crypt/crypt_find_hash_id.obj \
+src/misc/crypt/crypt_find_hash_oid.obj src/misc/crypt/crypt_find_prng.obj src/misc/crypt/crypt_fsa.obj \
+src/misc/crypt/crypt_hash_descriptor.obj src/misc/crypt/crypt_hash_is_valid.obj \
+src/misc/crypt/crypt_inits.obj src/misc/crypt/crypt_ltc_mp_descriptor.obj \
 src/misc/crypt/crypt_prng_descriptor.obj src/misc/crypt/crypt_prng_is_valid.obj \
 src/misc/crypt/crypt_register_cipher.obj src/misc/crypt/crypt_register_hash.obj \
-src/misc/crypt/crypt_register_prng.obj src/misc/crypt/crypt_unregister_cipher.obj \
-src/misc/crypt/crypt_unregister_hash.obj src/misc/crypt/crypt_unregister_prng.obj \
-src/misc/error_to_string.obj src/misc/hkdf/hkdf.obj src/misc/hkdf/hkdf_test.obj src/misc/pkcs5/pkcs_5_1.obj \
-src/misc/pkcs5/pkcs_5_2.obj src/misc/pkcs5/pkcs_5_test.obj src/misc/pk_get_oid.obj src/misc/zeromem.obj \
-src/modes/cbc/cbc_decrypt.obj src/modes/cbc/cbc_done.obj src/modes/cbc/cbc_encrypt.obj \
-src/modes/cbc/cbc_getiv.obj src/modes/cbc/cbc_setiv.obj src/modes/cbc/cbc_start.obj \
-src/modes/cfb/cfb_decrypt.obj src/modes/cfb/cfb_done.obj src/modes/cfb/cfb_encrypt.obj \
-src/modes/cfb/cfb_getiv.obj src/modes/cfb/cfb_setiv.obj src/modes/cfb/cfb_start.obj \
-src/modes/ctr/ctr_decrypt.obj src/modes/ctr/ctr_done.obj src/modes/ctr/ctr_encrypt.obj \
-src/modes/ctr/ctr_getiv.obj src/modes/ctr/ctr_setiv.obj src/modes/ctr/ctr_start.obj src/modes/ctr/ctr_test.obj \
+src/misc/crypt/crypt_register_prng.obj src/misc/crypt/crypt_sizes.obj \
+src/misc/crypt/crypt_unregister_cipher.obj src/misc/crypt/crypt_unregister_hash.obj \
+src/misc/crypt/crypt_unregister_prng.obj src/misc/error_to_string.obj src/misc/hkdf/hkdf.obj \
+src/misc/hkdf/hkdf_test.obj src/misc/pkcs5/pkcs_5_1.obj src/misc/pkcs5/pkcs_5_2.obj \
+src/misc/pkcs5/pkcs_5_test.obj src/misc/pk_get_oid.obj src/misc/zeromem.obj src/modes/cbc/cbc_decrypt.obj \
+src/modes/cbc/cbc_done.obj src/modes/cbc/cbc_encrypt.obj src/modes/cbc/cbc_getiv.obj \
+src/modes/cbc/cbc_setiv.obj src/modes/cbc/cbc_start.obj src/modes/cfb/cfb_decrypt.obj \
+src/modes/cfb/cfb_done.obj src/modes/cfb/cfb_encrypt.obj src/modes/cfb/cfb_getiv.obj \
+src/modes/cfb/cfb_setiv.obj src/modes/cfb/cfb_start.obj src/modes/ctr/ctr_decrypt.obj \
+src/modes/ctr/ctr_done.obj src/modes/ctr/ctr_encrypt.obj src/modes/ctr/ctr_getiv.obj \
+src/modes/ctr/ctr_setiv.obj src/modes/ctr/ctr_start.obj src/modes/ctr/ctr_test.obj \
 src/modes/ecb/ecb_decrypt.obj src/modes/ecb/ecb_done.obj src/modes/ecb/ecb_encrypt.obj \
 src/modes/ecb/ecb_start.obj src/modes/f8/f8_decrypt.obj src/modes/f8/f8_done.obj src/modes/f8/f8_encrypt.obj \
 src/modes/f8/f8_getiv.obj src/modes/f8/f8_setiv.obj src/modes/f8/f8_start.obj src/modes/f8/f8_test_mode.obj \
diff --git a/makefile.shared b/makefile.shared
index d658e08..3aa78b4 100644
--- a/makefile.shared
+++ b/makefile.shared
@@ -141,24 +141,26 @@ src/mac/xcbc/xcbc_test.o src/math/fp/ltc_ecc_fp_mulmod.o src/math/gmp_desc.o src
 src/math/multi.o src/math/rand_bn.o src/math/rand_prime.o src/math/tfm_desc.o \
 src/misc/base64/base64_decode.o src/misc/base64/base64_encode.o src/misc/burn_stack.o \
 src/misc/crypt/crypt_argchk.o src/misc/crypt/crypt.o src/misc/crypt/crypt_cipher_descriptor.o \
-src/misc/crypt/crypt_cipher_is_valid.o src/misc/crypt/crypt_find_cipher_any.o \
-src/misc/crypt/crypt_find_cipher.o src/misc/crypt/crypt_find_cipher_id.o \
-src/misc/crypt/crypt_find_hash_any.o src/misc/crypt/crypt_find_hash.o \
-src/misc/crypt/crypt_find_hash_id.o src/misc/crypt/crypt_find_hash_oid.o \
-src/misc/crypt/crypt_find_prng.o src/misc/crypt/crypt_fsa.o src/misc/crypt/crypt_hash_descriptor.o \
-src/misc/crypt/crypt_hash_is_valid.o src/misc/crypt/crypt_ltc_mp_descriptor.o \
+src/misc/crypt/crypt_cipher_is_valid.o src/misc/crypt/crypt_constants.o \
+src/misc/crypt/crypt_find_cipher_any.o src/misc/crypt/crypt_find_cipher.o \
+src/misc/crypt/crypt_find_cipher_id.o src/misc/crypt/crypt_find_hash_any.o \
+src/misc/crypt/crypt_find_hash.o src/misc/crypt/crypt_find_hash_id.o \
+src/misc/crypt/crypt_find_hash_oid.o src/misc/crypt/crypt_find_prng.o src/misc/crypt/crypt_fsa.o \
+src/misc/crypt/crypt_hash_descriptor.o src/misc/crypt/crypt_hash_is_valid.o \
+src/misc/crypt/crypt_inits.o src/misc/crypt/crypt_ltc_mp_descriptor.o \
 src/misc/crypt/crypt_prng_descriptor.o src/misc/crypt/crypt_prng_is_valid.o \
 src/misc/crypt/crypt_register_cipher.o src/misc/crypt/crypt_register_hash.o \
-src/misc/crypt/crypt_register_prng.o src/misc/crypt/crypt_unregister_cipher.o \
-src/misc/crypt/crypt_unregister_hash.o src/misc/crypt/crypt_unregister_prng.o \
-src/misc/error_to_string.o src/misc/hkdf/hkdf.o src/misc/hkdf/hkdf_test.o src/misc/pkcs5/pkcs_5_1.o \
-src/misc/pkcs5/pkcs_5_2.o src/misc/pkcs5/pkcs_5_test.o src/misc/pk_get_oid.o src/misc/zeromem.o \
-src/modes/cbc/cbc_decrypt.o src/modes/cbc/cbc_done.o src/modes/cbc/cbc_encrypt.o \
-src/modes/cbc/cbc_getiv.o src/modes/cbc/cbc_setiv.o src/modes/cbc/cbc_start.o \
-src/modes/cfb/cfb_decrypt.o src/modes/cfb/cfb_done.o src/modes/cfb/cfb_encrypt.o \
-src/modes/cfb/cfb_getiv.o src/modes/cfb/cfb_setiv.o src/modes/cfb/cfb_start.o \
-src/modes/ctr/ctr_decrypt.o src/modes/ctr/ctr_done.o src/modes/ctr/ctr_encrypt.o \
-src/modes/ctr/ctr_getiv.o src/modes/ctr/ctr_setiv.o src/modes/ctr/ctr_start.o src/modes/ctr/ctr_test.o \
+src/misc/crypt/crypt_register_prng.o src/misc/crypt/crypt_sizes.o \
+src/misc/crypt/crypt_unregister_cipher.o src/misc/crypt/crypt_unregister_hash.o \
+src/misc/crypt/crypt_unregister_prng.o src/misc/error_to_string.o src/misc/hkdf/hkdf.o \
+src/misc/hkdf/hkdf_test.o src/misc/pkcs5/pkcs_5_1.o src/misc/pkcs5/pkcs_5_2.o \
+src/misc/pkcs5/pkcs_5_test.o src/misc/pk_get_oid.o src/misc/zeromem.o src/modes/cbc/cbc_decrypt.o \
+src/modes/cbc/cbc_done.o src/modes/cbc/cbc_encrypt.o src/modes/cbc/cbc_getiv.o \
+src/modes/cbc/cbc_setiv.o src/modes/cbc/cbc_start.o src/modes/cfb/cfb_decrypt.o \
+src/modes/cfb/cfb_done.o src/modes/cfb/cfb_encrypt.o src/modes/cfb/cfb_getiv.o \
+src/modes/cfb/cfb_setiv.o src/modes/cfb/cfb_start.o src/modes/ctr/ctr_decrypt.o \
+src/modes/ctr/ctr_done.o src/modes/ctr/ctr_encrypt.o src/modes/ctr/ctr_getiv.o \
+src/modes/ctr/ctr_setiv.o src/modes/ctr/ctr_start.o src/modes/ctr/ctr_test.o \
 src/modes/ecb/ecb_decrypt.o src/modes/ecb/ecb_done.o src/modes/ecb/ecb_encrypt.o \
 src/modes/ecb/ecb_start.o src/modes/f8/f8_decrypt.o src/modes/f8/f8_done.o src/modes/f8/f8_encrypt.o \
 src/modes/f8/f8_getiv.o src/modes/f8/f8_setiv.o src/modes/f8/f8_start.o src/modes/f8/f8_test_mode.o \
diff --git a/makefile.unix b/makefile.unix
index eb2f38c..9e2a645 100644
--- a/makefile.unix
+++ b/makefile.unix
@@ -83,24 +83,26 @@ src/mac/xcbc/xcbc_test.o src/math/fp/ltc_ecc_fp_mulmod.o src/math/gmp_desc.o src
 src/math/multi.o src/math/rand_bn.o src/math/rand_prime.o src/math/tfm_desc.o \
 src/misc/base64/base64_decode.o src/misc/base64/base64_encode.o src/misc/burn_stack.o \
 src/misc/crypt/crypt_argchk.o src/misc/crypt/crypt.o src/misc/crypt/crypt_cipher_descriptor.o \
-src/misc/crypt/crypt_cipher_is_valid.o src/misc/crypt/crypt_find_cipher_any.o \
-src/misc/crypt/crypt_find_cipher.o src/misc/crypt/crypt_find_cipher_id.o \
-src/misc/crypt/crypt_find_hash_any.o src/misc/crypt/crypt_find_hash.o \
-src/misc/crypt/crypt_find_hash_id.o src/misc/crypt/crypt_find_hash_oid.o \
-src/misc/crypt/crypt_find_prng.o src/misc/crypt/crypt_fsa.o src/misc/crypt/crypt_hash_descriptor.o \
-src/misc/crypt/crypt_hash_is_valid.o src/misc/crypt/crypt_ltc_mp_descriptor.o \
+src/misc/crypt/crypt_cipher_is_valid.o src/misc/crypt/crypt_constants.o \
+src/misc/crypt/crypt_find_cipher_any.o src/misc/crypt/crypt_find_cipher.o \
+src/misc/crypt/crypt_find_cipher_id.o src/misc/crypt/crypt_find_hash_any.o \
+src/misc/crypt/crypt_find_hash.o src/misc/crypt/crypt_find_hash_id.o \
+src/misc/crypt/crypt_find_hash_oid.o src/misc/crypt/crypt_find_prng.o src/misc/crypt/crypt_fsa.o \
+src/misc/crypt/crypt_hash_descriptor.o src/misc/crypt/crypt_hash_is_valid.o \
+src/misc/crypt/crypt_inits.o src/misc/crypt/crypt_ltc_mp_descriptor.o \
 src/misc/crypt/crypt_prng_descriptor.o src/misc/crypt/crypt_prng_is_valid.o \
 src/misc/crypt/crypt_register_cipher.o src/misc/crypt/crypt_register_hash.o \
-src/misc/crypt/crypt_register_prng.o src/misc/crypt/crypt_unregister_cipher.o \
-src/misc/crypt/crypt_unregister_hash.o src/misc/crypt/crypt_unregister_prng.o \
-src/misc/error_to_string.o src/misc/hkdf/hkdf.o src/misc/hkdf/hkdf_test.o src/misc/pkcs5/pkcs_5_1.o \
-src/misc/pkcs5/pkcs_5_2.o src/misc/pkcs5/pkcs_5_test.o src/misc/pk_get_oid.o src/misc/zeromem.o \
-src/modes/cbc/cbc_decrypt.o src/modes/cbc/cbc_done.o src/modes/cbc/cbc_encrypt.o \
-src/modes/cbc/cbc_getiv.o src/modes/cbc/cbc_setiv.o src/modes/cbc/cbc_start.o \
-src/modes/cfb/cfb_decrypt.o src/modes/cfb/cfb_done.o src/modes/cfb/cfb_encrypt.o \
-src/modes/cfb/cfb_getiv.o src/modes/cfb/cfb_setiv.o src/modes/cfb/cfb_start.o \
-src/modes/ctr/ctr_decrypt.o src/modes/ctr/ctr_done.o src/modes/ctr/ctr_encrypt.o \
-src/modes/ctr/ctr_getiv.o src/modes/ctr/ctr_setiv.o src/modes/ctr/ctr_start.o src/modes/ctr/ctr_test.o \
+src/misc/crypt/crypt_register_prng.o src/misc/crypt/crypt_sizes.o \
+src/misc/crypt/crypt_unregister_cipher.o src/misc/crypt/crypt_unregister_hash.o \
+src/misc/crypt/crypt_unregister_prng.o src/misc/error_to_string.o src/misc/hkdf/hkdf.o \
+src/misc/hkdf/hkdf_test.o src/misc/pkcs5/pkcs_5_1.o src/misc/pkcs5/pkcs_5_2.o \
+src/misc/pkcs5/pkcs_5_test.o src/misc/pk_get_oid.o src/misc/zeromem.o src/modes/cbc/cbc_decrypt.o \
+src/modes/cbc/cbc_done.o src/modes/cbc/cbc_encrypt.o src/modes/cbc/cbc_getiv.o \
+src/modes/cbc/cbc_setiv.o src/modes/cbc/cbc_start.o src/modes/cfb/cfb_decrypt.o \
+src/modes/cfb/cfb_done.o src/modes/cfb/cfb_encrypt.o src/modes/cfb/cfb_getiv.o \
+src/modes/cfb/cfb_setiv.o src/modes/cfb/cfb_start.o src/modes/ctr/ctr_decrypt.o \
+src/modes/ctr/ctr_done.o src/modes/ctr/ctr_encrypt.o src/modes/ctr/ctr_getiv.o \
+src/modes/ctr/ctr_setiv.o src/modes/ctr/ctr_start.o src/modes/ctr/ctr_test.o \
 src/modes/ecb/ecb_decrypt.o src/modes/ecb/ecb_done.o src/modes/ecb/ecb_encrypt.o \
 src/modes/ecb/ecb_start.o src/modes/f8/f8_decrypt.o src/modes/f8/f8_done.o src/modes/f8/f8_encrypt.o \
 src/modes/f8/f8_getiv.o src/modes/f8/f8_setiv.o src/modes/f8/f8_start.o src/modes/f8/f8_test_mode.o \
diff --git a/src/headers/tomcrypt_misc.h b/src/headers/tomcrypt_misc.h
index e1e4457..503447c 100644
--- a/src/headers/tomcrypt_misc.h
+++ b/src/headers/tomcrypt_misc.h
@@ -49,6 +49,26 @@ extern const char *crypt_build_settings;
 /* ---- HMM ---- */
 int crypt_fsa(void *mp, ...);
 
+/* ---- Dynamic language support ---- */
+int crypt_get_constant(const char* namein, int *valueout);
+int crypt_list_all_constants(char *names_list, unsigned long *names_list_size);
+
+int crypt_get_size(const char* namein, int *sizeout);
+int crypt_list_all_sizes(char *names_list, unsigned long *names_list_size);
+
+#ifdef LTM_DESC
+void init_LTM(void);
+#endif
+#ifdef TFM_DESC
+void init_TFM(void);
+#endif
+/*                          *** use of GMP is untested ***
+#ifdef GMP_DESC
+void init_GMP(void);
+#endif
+*/
+
+
 /* $Source$ */
 /* $Revision$ */
 /* $Date$ */
diff --git a/src/misc/crypt/crypt_constants.c b/src/misc/crypt/crypt_constants.c
new file mode 100755
index 0000000..adb6836
--- /dev/null
+++ b/src/misc/crypt/crypt_constants.c
@@ -0,0 +1,231 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * guarantee it works.
+ *
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file crypt_constants.c
+
+  Make various constants available to dynamic languages
+  like Python - Larry Bugbee, February 2013
+
+  LB - Dec 2013 - revised to include compiler define options
+  LB - Mar 2014 - added endianness and word size
+*/
+
+typedef struct {
+    const char *name;
+    const long value;
+} crypt_constant;
+
+#define _C_STRINGIFY(s) { #s, s }
+
+static const crypt_constant _crypt_constants[] = {
+    _C_STRINGIFY(PK_PUBLIC),
+    _C_STRINGIFY(PK_PRIVATE),
+
+    _C_STRINGIFY(PKA_RSA),
+    _C_STRINGIFY(PKA_DSA),
+
+#ifdef LTC_PKCS_1
+    {"LTC_PKCS_1", 1},
+    /* Block types */
+    _C_STRINGIFY(LTC_PKCS_1_EMSA),
+    _C_STRINGIFY(LTC_PKCS_1_EME),
+
+    /* Padding types */
+    _C_STRINGIFY(LTC_PKCS_1_V1_5),
+    _C_STRINGIFY(LTC_PKCS_1_OAEP),
+    _C_STRINGIFY(LTC_PKCS_1_PSS),
+#else
+    {"LTC_PKCS_1", 0},
+#endif
+
+#ifdef LTC_MRSA
+    {"LTC_MRSA", 1},
+    _C_STRINGIFY(MIN_RSA_SIZE),
+    _C_STRINGIFY(MAX_RSA_SIZE),
+#else
+    {"LTC_MRSA", 0},
+#endif
+
+#ifdef MKAT
+    {"MKAT", 1},
+    _C_STRINGIFY(MIN_KAT_SIZE),
+    _C_STRINGIFY(MAX_KAT_SIZE),
+#else
+    {"MKAT", 0},
+#endif
+
+#ifdef LTC_MECC
+    {"LTC_MECC", 1},
+    _C_STRINGIFY(ECC_BUF_SIZE),
+    _C_STRINGIFY(ECC_MAXSIZE),
+#else
+    {"LTC_MECC", 0},
+#endif
+
+#ifdef LTC_MDSA
+    {"LTC_MDSA", 1},
+    _C_STRINGIFY(LTC_MDSA_DELTA),
+    _C_STRINGIFY(LTC_MDSA_MAX_GROUP),
+#else
+    {"LTC_MDSA", 0},
+#endif
+
+#ifdef LTC_CTR_MODE
+    {"LTC_CTR_MODE", 1},
+    _C_STRINGIFY(CTR_COUNTER_LITTLE_ENDIAN),
+    _C_STRINGIFY(CTR_COUNTER_BIG_ENDIAN),
+    _C_STRINGIFY(LTC_CTR_RFC3686),
+#else
+    {"LTC_CTR_MODE", 0},
+#endif
+
+    _C_STRINGIFY(MAXBLOCKSIZE),
+    _C_STRINGIFY(TAB_SIZE),
+    _C_STRINGIFY(ARGTYPE),
+
+#ifdef LTM_DESC
+    {"LTM_DESC", 1},
+#else
+    {"LTM_DESC", 0},
+#endif
+#ifdef TFM_DESC
+    {"TFM_DESC", 1},
+#else
+    {"TFM_DESC", 0},
+#endif
+#ifdef GMP_DESC
+    {"GMP_DESC", 1},
+#else
+    {"GMP_DESC", 0},
+#endif
+
+#ifdef LTC_FAST
+    {"LTC_FAST", 1},
+#else
+    {"LTC_FAST", 0},
+#endif
+
+#ifdef LTC_NO_FILE
+    {"LTC_NO_FILE", 1},
+#else
+    {"LTC_NO_FILE", 0},
+#endif
+
+#ifdef ENDIAN_LITTLE
+    {"ENDIAN_LITTLE",             1},
+#else
+    {"ENDIAN_LITTLE",             0},
+#endif
+
+#ifdef ENDIAN_BIG
+    {"ENDIAN_BIG",                1},
+#else
+    {"ENDIAN_BIG",                0},
+#endif
+
+#ifdef ENDIAN_32BITWORD
+    {"ENDIAN_32BITWORD",          1},
+#else
+    {"ENDIAN_32BITWORD",          0},
+#endif
+
+#ifdef ENDIAN_64BITWORD
+    {"ENDIAN_64BITWORD",          1},
+#else
+    {"ENDIAN_64BITWORD",          0},
+#endif
+
+#ifdef ENDIAN_NEUTRAL
+    {"ENDIAN_NEUTRAL",            1},
+#else
+    {"ENDIAN_NEUTRAL",            0},
+#endif
+};
+
+
+/* crypt_get_constant()
+ * valueout will be the value of the named constant
+ * return -1 if named item not found
+ */
+int crypt_get_constant(const char* namein, int *valueout) {
+    int i;
+    int _crypt_constants_len = sizeof(_crypt_constants) / sizeof(_crypt_constants[0]);
+    for (i=0; i<_crypt_constants_len; i++) {
+        if (strcmp(_crypt_constants[i].name, namein) == 0) {
+            *valueout = _crypt_constants[i].value;
+            return 0;
+        }
+    }
+    return 1;
+}
+
+/* crypt_list_all_constants()
+ * if names_list is NULL, names_list_size will be the minimum
+ *     number of bytes needed to receive the complete names_list
+ * if names_list is NOT NULL, names_list must be the addr of
+ *     sufficient memory allocated into which the names_list
+ *     is to be written.  Also, the value in names_list_size
+ *     sets the upper bound of the number of characters to be
+ *     written.
+ * a -1 return value signifies insufficient space made available
+ */
+int crypt_list_all_constants(char *names_list, unsigned long *names_list_size) {
+    int i;
+    unsigned long total_len = 0;
+    char number[32];
+    int number_len;
+    int count = sizeof(_crypt_constants) / sizeof(_crypt_constants[0]);
+
+    /* calculate amount of memory required for the list */
+    for (i=0; i<count; i++) {
+        total_len += strlen(_crypt_constants[i].name) + 1;
+        /* the above +1 is for the commas */
+        number_len = snprintf(number, sizeof(number), "%ld", _crypt_constants[i].value);
+        if ((number_len < 0) ||
+            ((unsigned int)number_len >= sizeof(number)))
+          return -1;
+        total_len += number_len + 1;
+        /* this last +1 is for newlines (and ending NULL) */
+    }
+
+    if (names_list == NULL) {
+        *names_list_size = total_len;
+    } else {
+        if (total_len > *names_list_size) {
+            return -1;
+        }
+        /* build the names list */
+        char *ptr = names_list;
+        for (i=0; i<count; i++) {
+            strcpy(ptr, _crypt_constants[i].name);
+            ptr += strlen(_crypt_constants[i].name);
+            strcpy(ptr, ",");
+            ptr += 1;
+
+            number_len = snprintf(number, sizeof(number), "%ld", _crypt_constants[i].value);
+            strcpy(ptr, number);
+            ptr += number_len;
+            strcpy(ptr, "\n");
+            ptr += 1;
+        }
+        /* to remove the trailing new-line */
+        ptr -= 1;
+        *ptr = 0;
+    }
+    return 0;
+}
+
+
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */
diff --git a/src/misc/crypt/crypt_inits.c b/src/misc/crypt/crypt_inits.c
new file mode 100755
index 0000000..cc92f52
--- /dev/null
+++ b/src/misc/crypt/crypt_inits.c
@@ -0,0 +1,44 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * guarantee it works.
+ *
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file crypt_inits.c
+
+  Provide math library functions for dynamic languages
+  like Python - Larry Bugbee, February 2013
+*/
+
+
+#ifdef LTM_DESC
+void init_LTM(void) {
+    ltc_mp = ltm_desc;
+}
+#endif
+
+#ifdef TFM_DESC
+void init_TFM(void) {
+    ltc_mp = tfm_desc;
+}
+#endif
+
+/*                          *** use of GMP is untested ***
+#ifdef GMP_DESC
+void init_GMP(void) {
+    ltc_mp = gmp_desc;
+}
+#endif
+*/
+
+
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */
diff --git a/src/misc/crypt/crypt_sizes.c b/src/misc/crypt/crypt_sizes.c
new file mode 100755
index 0000000..d7b1cb8
--- /dev/null
+++ b/src/misc/crypt/crypt_sizes.c
@@ -0,0 +1,311 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * guarantee it works.
+ *
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file crypt_sizes.c
+
+  Make various struct sizes available to dynamic languages
+  like Python - Larry Bugbee, February 2013
+
+  LB - Dec 2013 - revised to include compiler define options
+*/
+
+
+typedef struct {
+    const char *name;
+    const long size;
+} crypt_size;
+
+#define _SZ_STRINGIFY_S(s) { #s, sizeof(struct s) }
+#define _SZ_STRINGIFY_T(s) { #s, sizeof(s) }
+
+static const crypt_size _crypt_sizes[] = {
+    // hash state sizes
+    _SZ_STRINGIFY_S(ltc_hash_descriptor),
+    _SZ_STRINGIFY_T(hash_state),
+#ifdef LTC_SHA256
+    _SZ_STRINGIFY_S(sha256_state),
+#endif
+#ifdef LTC_SHA512
+    _SZ_STRINGIFY_S(sha512_state),
+#endif
+#ifdef LTC_WHIRLPOOL
+    _SZ_STRINGIFY_S(whirlpool_state),
+#endif
+#ifdef LTC_MD2
+    _SZ_STRINGIFY_S(md2_state),
+#endif
+#ifdef LTC_MD4
+    _SZ_STRINGIFY_S(md4_state),
+#endif
+#ifdef LTC_MD5
+    _SZ_STRINGIFY_S(md5_state),
+#endif
+#ifdef LTC_RIPEMD128
+    _SZ_STRINGIFY_S(rmd128_state),
+#endif
+#ifdef LTC_RIPEMD160
+    _SZ_STRINGIFY_S(rmd160_state),
+#endif
+#ifdef LTC_RIPEMD256
+    _SZ_STRINGIFY_S(rmd256_state),
+#endif
+#ifdef LTC_RIPEMD320
+    _SZ_STRINGIFY_S(rmd320_state),
+#endif
+#ifdef LTC_SHA1
+    _SZ_STRINGIFY_S(sha1_state),
+#endif
+#ifdef LTC_TIGER
+    _SZ_STRINGIFY_S(tiger_state),
+#endif
+#ifdef LTC_CHC_HASH
+    _SZ_STRINGIFY_S(chc_state),
+#endif
+
+    // block cipher key sizes
+    _SZ_STRINGIFY_S(ltc_cipher_descriptor),
+    _SZ_STRINGIFY_T(symmetric_key),
+#ifdef LTC_ANUBIS
+    _SZ_STRINGIFY_S(anubis_key),
+#endif
+#ifdef LTC_CAMELLIA
+    _SZ_STRINGIFY_S(camellia_key),
+#endif
+#ifdef LTC_BLOWFISH
+    _SZ_STRINGIFY_S(blowfish_key),
+#endif
+#ifdef LTC_CAST5
+    _SZ_STRINGIFY_S(cast5_key),
+#endif
+#ifdef LTC_DES
+    _SZ_STRINGIFY_S(des_key),
+    _SZ_STRINGIFY_S(des3_key),
+#endif
+#ifdef LTC_KASUMI
+    _SZ_STRINGIFY_S(kasumi_key),
+#endif
+#ifdef LTC_KHAZAD
+    _SZ_STRINGIFY_S(khazad_key),
+#endif
+#ifdef LTC_KSEED
+    _SZ_STRINGIFY_S(kseed_key),
+#endif
+#ifdef LTC_MULTI2
+    _SZ_STRINGIFY_S(multi2_key),
+#endif
+#ifdef LTC_NOEKEON
+    _SZ_STRINGIFY_S(noekeon_key),
+#endif
+#ifdef LTC_RC2
+    _SZ_STRINGIFY_S(rc2_key),
+#endif
+#ifdef LTC_RC5
+    _SZ_STRINGIFY_S(rc5_key),
+#endif
+#ifdef LTC_RC6
+    _SZ_STRINGIFY_S(rc6_key),
+#endif
+#ifdef LTC_SKIPJACK
+    _SZ_STRINGIFY_S(skipjack_key),
+#endif
+#ifdef LTC_XTEA
+    _SZ_STRINGIFY_S(xtea_key),
+#endif
+#ifdef LTC_RIJNDAEL
+    _SZ_STRINGIFY_S(rijndael_key),
+#endif
+#ifdef LTC_SAFER
+    _SZ_STRINGIFY_S(safer_key),
+#endif
+#ifdef LTC_SAFERP
+    _SZ_STRINGIFY_S(saferp_key),
+#endif
+#ifdef LTC_TWOFISH
+    _SZ_STRINGIFY_S(twofish_key),
+#endif
+
+    // mode sizes
+#ifdef LTC_CBC_MODE
+    _SZ_STRINGIFY_T(symmetric_CBC),
+#endif
+#ifdef LTC_CFB_MODE
+    _SZ_STRINGIFY_T(symmetric_CFB),
+#endif
+#ifdef LTC_CTR_MODE
+    _SZ_STRINGIFY_T(symmetric_CTR),
+#endif
+#ifdef LTC_ECB_MODE
+    _SZ_STRINGIFY_T(symmetric_ECB),
+#endif
+#ifdef LTC_F8_MODE
+    _SZ_STRINGIFY_T(symmetric_F8),
+#endif
+#ifdef LTC_LRW_MODE
+    _SZ_STRINGIFY_T(symmetric_LRW),
+#endif
+#ifdef LTC_OFB_MODE
+    _SZ_STRINGIFY_T(symmetric_OFB),
+#endif
+
+    // MAC sizes            -- no states for ccm, lrw
+#ifdef LTC_F9_MODE
+    _SZ_STRINGIFY_T(f9_state),
+#endif
+#ifdef LTC_HMAC
+    _SZ_STRINGIFY_T(hmac_state),
+#endif
+#ifdef LTC_OMAC
+    _SZ_STRINGIFY_T(omac_state),
+#endif
+#ifdef LTC_PELICAN
+    _SZ_STRINGIFY_T(pelican_state),
+#endif
+#ifdef LTC_PMAC
+    _SZ_STRINGIFY_T(pmac_state),
+#endif
+#ifdef LTC_XCBC
+    _SZ_STRINGIFY_T(xcbc_state),
+#endif
+#ifdef LTC_OCB_MODE
+    _SZ_STRINGIFY_T(ocb_state),
+#endif
+#ifdef LTC_OCB3_MODE
+    _SZ_STRINGIFY_T(ocb3_state),
+#endif
+#ifdef LTC_GCM_MODE
+    _SZ_STRINGIFY_T(gcm_state),
+#endif
+#ifdef LTC_EAX_MODE
+    _SZ_STRINGIFY_T(eax_state),
+#endif
+#ifdef LTC_CCM_MODE
+// not defined
+#endif
+#ifdef LRW_MODE
+// not defined
+#endif
+
+    // asymmetric keys
+#ifdef LTC_MRSA
+    _SZ_STRINGIFY_T(rsa_key),
+#endif
+#ifdef LTC_MDSA
+    _SZ_STRINGIFY_T(dsa_key),
+#endif
+#ifdef LTC_MDH
+    _SZ_STRINGIFY_T(dh_key),
+#endif
+#ifdef LTC_MECC
+    _SZ_STRINGIFY_T(ltc_ecc_set_type),
+    _SZ_STRINGIFY_T(ecc_key),
+    _SZ_STRINGIFY_T(ecc_point),
+#endif
+#ifdef MKAT
+    _SZ_STRINGIFY_T(katja_key),
+#endif
+
+    // prng state sizes
+    _SZ_STRINGIFY_S(ltc_prng_descriptor),
+    _SZ_STRINGIFY_T(prng_state),
+#ifdef LTC_FORTUNA
+    _SZ_STRINGIFY_S(fortuna_prng),
+#endif
+#ifdef LTC_RC4
+    _SZ_STRINGIFY_S(rc4_prng),
+#endif
+#ifdef LTC_SOBER128
+    _SZ_STRINGIFY_S(sober128_prng),
+#endif
+#ifdef LTC_YARROW
+    _SZ_STRINGIFY_S(yarrow_prng),
+#endif
+    // sprng has no state as it uses other potentially available sources
+    // like /dev/random.  See Developers Guide for more info.
+};
+
+/* crypt_get_size()
+ * sizeout will be the size (bytes) of the named struct or union
+ * return -1 if named item not found
+ */
+int crypt_get_size(const char* namein, int *sizeout) {
+    int i;
+    int count = sizeof(_crypt_sizes) / sizeof(_crypt_sizes[0]);
+    for (i=0; i<count; i++) {
+        if (strcmp(_crypt_sizes[i].name, namein) == 0) {
+            *sizeout = _crypt_sizes[i].size;
+            return 0;
+        }
+    }
+    return -1;
+}
+
+/* crypt_list_all_sizes()
+ * if names_list is NULL, names_list_size will be the minimum
+ *     size needed to receive the complete names_list
+ * if names_list is NOT NULL, names_list must be the addr with
+ *     sufficient memory allocated into which the names_list
+ *     is to be written.  Also, the value in names_list_size
+ *     sets the upper bound of the number of characters to be
+ *     written.
+ * a -1 return value signifies insufficient space made available
+ */
+int crypt_list_all_sizes(char *names_list, unsigned long *names_list_size) {
+    int i;
+    unsigned long total_len = 0;
+    char number[32];
+    int number_len;
+    int count = sizeof(_crypt_sizes) / sizeof(_crypt_sizes[0]);
+
+    /* calculate amount of memory required for the list */
+    for (i=0; i<count; i++) {
+        total_len += strlen(_crypt_sizes[i].name) + 1;
+        /* the above +1 is for the commas */
+        number_len = snprintf(number, sizeof(number), "%ld", _crypt_sizes[i].size);
+        if ((number_len < 0) ||
+            ((unsigned int)number_len >= sizeof(number)))
+          return -1;
+        total_len += strlen(number) + 1;
+        /* this last +1 is for newlines (and ending NULL) */
+    }
+
+    if (names_list == NULL) {
+        *names_list_size = total_len;
+    } else {
+        if (total_len > *names_list_size) {
+            return -1;
+        }
+        /* build the names list */
+        char *ptr = names_list;
+        for (i=0; i<count; i++) {
+            strcpy(ptr, _crypt_sizes[i].name);
+            ptr += strlen(_crypt_sizes[i].name);
+            strcpy(ptr, ",");
+            ptr += 1;
+
+            number_len = snprintf(number, sizeof(number), "%ld", _crypt_sizes[i].size);
+            strcpy(ptr, number);
+            ptr += number_len;
+            strcpy(ptr, "\n");
+            ptr += 1;
+        }
+        /* to remove the trailing new-line */
+        ptr -= 1;
+        *ptr = 0;
+    }
+    return 0;
+}
+
+
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */