Merge pull request #182 from libtom/feature/generalizedtime

add GeneralizedTime DER processing

libtomcrypt_VS2005.vcproj

@@ -1456,6 +1456,22 @@
 							>
 						</File>
 					</Filter>
+					<Filter
+						Name="generalizedtime"
+						>
+						<File
+							RelativePath="src\pk\asn1\der\generalizedtime\der_decode_generalizedtime.c"
+							>
+						</File>
+						<File
+							RelativePath="src\pk\asn1\der\generalizedtime\der_encode_generalizedtime.c"
+							>
+						</File>
+						<File
+							RelativePath="src\pk\asn1\der\generalizedtime\der_length_generalizedtime.c"
+							>
+						</File>
+					</Filter>
 					<Filter
 						Name="ia5"
 						>

libtomcrypt_VS2008.vcproj

@@ -1697,6 +1697,22 @@
 							>
 						</File>
 					</Filter>
+					<Filter
+						Name="generalizedtime"
+						>
+						<File
+							RelativePath="src\pk\asn1\der\generalizedtime\der_decode_generalizedtime.c"
+							>
+						</File>
+						<File
+							RelativePath="src\pk\asn1\der\generalizedtime\der_encode_generalizedtime.c"
+							>
+						</File>
+						<File
+							RelativePath="src\pk\asn1\der\generalizedtime\der_length_generalizedtime.c"
+							>
+						</File>
+					</Filter>
 					<Filter
 						Name="ia5"
 						>

makefile

@@ -122,6 +122,9 @@ src/pk/asn1/der/bit/der_decode_raw_bit_string.o src/pk/asn1/der/bit/der_encode_b
 src/pk/asn1/der/bit/der_encode_raw_bit_string.o src/pk/asn1/der/bit/der_length_bit_string.o \
 src/pk/asn1/der/boolean/der_decode_boolean.o src/pk/asn1/der/boolean/der_encode_boolean.o \
 src/pk/asn1/der/boolean/der_length_boolean.o src/pk/asn1/der/choice/der_decode_choice.o \
+src/pk/asn1/der/generalizedtime/der_decode_generalizedtime.o \
+src/pk/asn1/der/generalizedtime/der_encode_generalizedtime.o \
+src/pk/asn1/der/generalizedtime/der_length_generalizedtime.o \
 src/pk/asn1/der/ia5/der_decode_ia5_string.o src/pk/asn1/der/ia5/der_encode_ia5_string.o \
 src/pk/asn1/der/ia5/der_length_ia5_string.o src/pk/asn1/der/integer/der_decode_integer.o \
 src/pk/asn1/der/integer/der_encode_integer.o src/pk/asn1/der/integer/der_length_integer.o \

makefile.icc

@@ -179,6 +179,9 @@ src/pk/asn1/der/bit/der_decode_raw_bit_string.o src/pk/asn1/der/bit/der_encode_b
 src/pk/asn1/der/bit/der_encode_raw_bit_string.o src/pk/asn1/der/bit/der_length_bit_string.o \
 src/pk/asn1/der/boolean/der_decode_boolean.o src/pk/asn1/der/boolean/der_encode_boolean.o \
 src/pk/asn1/der/boolean/der_length_boolean.o src/pk/asn1/der/choice/der_decode_choice.o \
+src/pk/asn1/der/generalizedtime/der_decode_generalizedtime.o \
+src/pk/asn1/der/generalizedtime/der_encode_generalizedtime.o \
+src/pk/asn1/der/generalizedtime/der_length_generalizedtime.o \
 src/pk/asn1/der/ia5/der_decode_ia5_string.o src/pk/asn1/der/ia5/der_encode_ia5_string.o \
 src/pk/asn1/der/ia5/der_length_ia5_string.o src/pk/asn1/der/integer/der_decode_integer.o \
 src/pk/asn1/der/integer/der_encode_integer.o src/pk/asn1/der/integer/der_length_integer.o \

makefile.mingw

@@ -115,6 +115,9 @@ src/pk/asn1/der/bit/der_decode_raw_bit_string.o src/pk/asn1/der/bit/der_encode_b
 src/pk/asn1/der/bit/der_encode_raw_bit_string.o src/pk/asn1/der/bit/der_length_bit_string.o \
 src/pk/asn1/der/boolean/der_decode_boolean.o src/pk/asn1/der/boolean/der_encode_boolean.o \
 src/pk/asn1/der/boolean/der_length_boolean.o src/pk/asn1/der/choice/der_decode_choice.o \
+src/pk/asn1/der/generalizedtime/der_decode_generalizedtime.o \
+src/pk/asn1/der/generalizedtime/der_encode_generalizedtime.o \
+src/pk/asn1/der/generalizedtime/der_length_generalizedtime.o \
 src/pk/asn1/der/ia5/der_decode_ia5_string.o src/pk/asn1/der/ia5/der_encode_ia5_string.o \
 src/pk/asn1/der/ia5/der_length_ia5_string.o src/pk/asn1/der/integer/der_decode_integer.o \
 src/pk/asn1/der/integer/der_encode_integer.o src/pk/asn1/der/integer/der_length_integer.o \

makefile.msvc

@@ -89,6 +89,9 @@ src/pk/asn1/der/bit/der_decode_raw_bit_string.obj src/pk/asn1/der/bit/der_encode
 src/pk/asn1/der/bit/der_encode_raw_bit_string.obj src/pk/asn1/der/bit/der_length_bit_string.obj \
 src/pk/asn1/der/boolean/der_decode_boolean.obj src/pk/asn1/der/boolean/der_encode_boolean.obj \
 src/pk/asn1/der/boolean/der_length_boolean.obj src/pk/asn1/der/choice/der_decode_choice.obj \
+src/pk/asn1/der/generalizedtime/der_decode_generalizedtime.obj \
+src/pk/asn1/der/generalizedtime/der_encode_generalizedtime.obj \
+src/pk/asn1/der/generalizedtime/der_length_generalizedtime.obj \
 src/pk/asn1/der/ia5/der_decode_ia5_string.obj src/pk/asn1/der/ia5/der_encode_ia5_string.obj \
 src/pk/asn1/der/ia5/der_length_ia5_string.obj src/pk/asn1/der/integer/der_decode_integer.obj \
 src/pk/asn1/der/integer/der_encode_integer.obj src/pk/asn1/der/integer/der_length_integer.obj \

makefile.shared

@@ -112,6 +112,9 @@ src/pk/asn1/der/bit/der_decode_raw_bit_string.o src/pk/asn1/der/bit/der_encode_b
 src/pk/asn1/der/bit/der_encode_raw_bit_string.o src/pk/asn1/der/bit/der_length_bit_string.o \
 src/pk/asn1/der/boolean/der_decode_boolean.o src/pk/asn1/der/boolean/der_encode_boolean.o \
 src/pk/asn1/der/boolean/der_length_boolean.o src/pk/asn1/der/choice/der_decode_choice.o \
+src/pk/asn1/der/generalizedtime/der_decode_generalizedtime.o \
+src/pk/asn1/der/generalizedtime/der_encode_generalizedtime.o \
+src/pk/asn1/der/generalizedtime/der_length_generalizedtime.o \
 src/pk/asn1/der/ia5/der_decode_ia5_string.o src/pk/asn1/der/ia5/der_encode_ia5_string.o \
 src/pk/asn1/der/ia5/der_length_ia5_string.o src/pk/asn1/der/integer/der_decode_integer.o \
 src/pk/asn1/der/integer/der_encode_integer.o src/pk/asn1/der/integer/der_length_integer.o \

makefile.unix

@@ -120,6 +120,9 @@ src/pk/asn1/der/bit/der_decode_raw_bit_string.o src/pk/asn1/der/bit/der_encode_b
 src/pk/asn1/der/bit/der_encode_raw_bit_string.o src/pk/asn1/der/bit/der_length_bit_string.o \
 src/pk/asn1/der/boolean/der_decode_boolean.o src/pk/asn1/der/boolean/der_encode_boolean.o \
 src/pk/asn1/der/boolean/der_length_boolean.o src/pk/asn1/der/choice/der_decode_choice.o \
+src/pk/asn1/der/generalizedtime/der_decode_generalizedtime.o \
+src/pk/asn1/der/generalizedtime/der_encode_generalizedtime.o \
+src/pk/asn1/der/generalizedtime/der_length_generalizedtime.o \
 src/pk/asn1/der/ia5/der_decode_ia5_string.o src/pk/asn1/der/ia5/der_encode_ia5_string.o \
 src/pk/asn1/der/ia5/der_length_ia5_string.o src/pk/asn1/der/integer/der_decode_integer.o \
 src/pk/asn1/der/integer/der_encode_integer.o src/pk/asn1/der/integer/der_length_integer.o \

src/headers/tomcrypt.h

@@ -55,9 +55,12 @@ enum {
    CRYPT_FILE_NOTFOUND,    /* File Not Found */
 
    CRYPT_PK_INVALID_TYPE,  /* Invalid type of PK key */
-   CRYPT_PK_INVALID_SYSTEM,/* Invalid PK system specified */
+
-   CRYPT_PK_DUP,           /* Duplicate key already in key ring */
+   CRYPT_OVERFLOW,         /* An overflow of a value was detected/prevented */
-   CRYPT_PK_NOT_FOUND,     /* Key not found in keyring */
+
+   CRYPT_UNUSED1,          /* UNUSED1 */
+   CRYPT_UNUSED2,          /* UNUSED2 */
+
    CRYPT_PK_INVALID_SIZE,  /* Invalid size input for PK parameters */
 
    CRYPT_INVALID_PRIME_SIZE,/* Invalid size of prime requested */

src/headers/tomcrypt_pk.h

@@ -475,6 +475,8 @@ typedef enum ltc_asn1_type_ {
  LTC_ASN1_TELETEX_STRING,
  LTC_ASN1_CONSTRUCTED,
  LTC_ASN1_CONTEXT_SPECIFIC,
+ /* 20 */
+ LTC_ASN1_GENERALIZEDTIME,
 } ltc_asn1_type;
 
 /** A LTC ASN.1 list type */
@@ -662,6 +664,28 @@ int der_decode_utctime(const unsigned char *in, unsigned long *inlen,
 
 int der_length_utctime(ltc_utctime *utctime, unsigned long *outlen);
 
+/* GeneralizedTime */
+typedef struct {
+   unsigned YYYY, /* year */
+            MM, /* month */
+            DD, /* day */
+            hh, /* hour */
+            mm, /* minute */
+            ss, /* second */
+            fs, /* fractional seconds */
+            off_dir, /* timezone offset direction 0 == +, 1 == - */
+            off_hh, /* timezone offset hours */
+            off_mm; /* timezone offset minutes */
+} ltc_generalizedtime;
+
+int der_encode_generalizedtime(ltc_generalizedtime *gtime,
+                               unsigned char       *out, unsigned long *outlen);
+
+int der_decode_generalizedtime(const unsigned char *in, unsigned long *inlen,
+                               ltc_generalizedtime *out);
+
+int der_length_generalizedtime(ltc_generalizedtime *gtime, unsigned long *outlen);
+
 
 #endif
 

src/misc/error_to_string.c

@@ -45,9 +45,12 @@ static const char * const err_2_str[] =
    "File Not Found",
 
    "Invalid PK type.",
-   "Invalid PK system.",
+
-   "Duplicate PK key found on keyring.",
+   "An overflow of a value was detected/prevented.",
-   "Key not found in keyring.",
+
+   "UNUSED1.",
+   "UNUSED2.",
+
    "Invalid sized parameter.",
 
    "Invalid size for prime.",

src/pk/asn1/der/choice/der_decode_choice.c

@@ -186,6 +186,15 @@ int der_decode_choice(const unsigned char *in,   unsigned long *inlen,
                }
                break;
 
+           case LTC_ASN1_GENERALIZEDTIME:
+               z = *inlen;
+               if (der_decode_generalizedtime(in, &z, data) == CRYPT_OK) {
+                  list[x].used = 1;
+                  *inlen       = z;
+                  return CRYPT_OK;
+               }
+               break;
+
            case LTC_ASN1_SET:
            case LTC_ASN1_SETOF:
            case LTC_ASN1_SEQUENCE:

src/pk/asn1/der/generalizedtime/der_decode_generalizedtime.c

@@ -0,0 +1,146 @@
+/* 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 der_decode_generalizedtime.c
+  ASN.1 DER, decode a GeneralizedTime, Steffen Jaeckel
+  Based on der_decode_utctime.c
+*/
+
+#ifdef LTC_DER
+
+static int char_to_int(unsigned char x)
+{
+   switch (x)  {
+      case '0': return 0;
+      case '1': return 1;
+      case '2': return 2;
+      case '3': return 3;
+      case '4': return 4;
+      case '5': return 5;
+      case '6': return 6;
+      case '7': return 7;
+      case '8': return 8;
+      case '9': return 9;
+   }
+   return 100;
+}
+
+#define DECODE_V(y, max) do {\
+   y  = char_to_int(buf[x])*10 + char_to_int(buf[x+1]); \
+   if (y >= max) return CRYPT_INVALID_PACKET;           \
+   x += 2; \
+} while(0)
+
+#define DECODE_V4(y, max) do {\
+   y  = char_to_int(buf[x])*1000 + char_to_int(buf[x+1])*100 + char_to_int(buf[x+2])*10 + char_to_int(buf[x+3]); \
+   if (y >= max) return CRYPT_INVALID_PACKET; \
+   x += 4; \
+} while(0)
+
+/**
+  Decodes a Generalized time structure in DER format (reads all 6 valid encoding formats)
+  @param in     Input buffer
+  @param inlen  Length of input buffer in octets
+  @param out    [out] Destination of Generalized time structure
+  @return CRYPT_OK   if successful
+*/
+int der_decode_generalizedtime(const unsigned char *in, unsigned long *inlen,
+                               ltc_generalizedtime *out)
+{
+   unsigned char buf[32];
+   unsigned long x;
+   int           y;
+
+   LTC_ARGCHK(in    != NULL);
+   LTC_ARGCHK(inlen != NULL);
+   LTC_ARGCHK(out   != NULL);
+
+   /* check header */
+   if (*inlen < 2UL || (in[1] >= sizeof(buf)) || ((in[1] + 2UL) > *inlen)) {
+      return CRYPT_INVALID_PACKET;
+   }
+
+   /* decode the string */
+   for (x = 0; x < in[1]; x++) {
+       y = der_ia5_value_decode(in[x+2]);
+       if (y == -1) {
+          return CRYPT_INVALID_PACKET;
+       }
+       if (!((y >= '0' && y <= '9')
+            || y == 'Z' || y == '.'
+            || y == '+' || y == '-')) {
+          return CRYPT_INVALID_PACKET;
+       }
+       buf[x] = y;
+   }
+   *inlen = 2 + x;
+
+   if (x < 15) {
+      return CRYPT_INVALID_PACKET;
+   }
+
+   /* possible encodings are
+YYYYMMDDhhmmssZ
+YYYYMMDDhhmmss+hh'mm'
+YYYYMMDDhhmmss-hh'mm'
+YYYYMMDDhhmmss.fsZ
+YYYYMMDDhhmmss.fs+hh'mm'
+YYYYMMDDhhmmss.fs-hh'mm'
+
+    So let's do a trivial decode upto [including] ss
+   */
+
+    x = 0;
+    DECODE_V4(out->YYYY, 10000);
+    DECODE_V(out->MM, 13);
+    DECODE_V(out->DD, 32);
+    DECODE_V(out->hh, 24);
+    DECODE_V(out->mm, 60);
+    DECODE_V(out->ss, 60);
+
+    /* clear fractional seconds info */
+    out->fs = 0;
+
+    /* now is it Z or . */
+    if (buf[x] == 'Z') {
+       return CRYPT_OK;
+    } else if (buf[x] == '.') {
+       x++;
+       while (buf[x] >= '0' && buf[x] <= '9') {
+          unsigned fs = out->fs;
+          if (x >= sizeof(buf)) return CRYPT_INVALID_PACKET;
+          out->fs *= 10;
+          out->fs += char_to_int(buf[x]);
+          if (fs > out->fs) return CRYPT_OVERFLOW;
+          x++;
+       }
+    }
+
+    /* now is it Z, +, - */
+    if (buf[x] == 'Z') {
+       return CRYPT_OK;
+    } else if (buf[x] == '+' || buf[x] == '-') {
+       out->off_dir = (buf[x++] == '+') ? 0 : 1;
+       DECODE_V(out->off_hh, 24);
+       DECODE_V(out->off_mm, 60);
+       return CRYPT_OK;
+    } else {
+       return CRYPT_INVALID_PACKET;
+    }
+}
+
+#endif
+
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */

src/pk/asn1/der/generalizedtime/der_encode_generalizedtime.c

@@ -0,0 +1,110 @@
+/* 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 der_encode_utctime.c
+  ASN.1 DER, encode a GeneralizedTime, Steffen Jaeckel
+  Based on der_encode_utctime.c
+*/
+
+#ifdef LTC_DER
+
+static const char * const baseten = "0123456789";
+
+#define STORE_V(y) do {\
+    out[x++] = der_ia5_char_encode(baseten[(y/10) % 10]); \
+    out[x++] = der_ia5_char_encode(baseten[y % 10]); \
+} while(0)
+
+#define STORE_V4(y) do {\
+    out[x++] = der_ia5_char_encode(baseten[(y/1000) % 10]); \
+    out[x++] = der_ia5_char_encode(baseten[(y/100) % 10]); \
+    out[x++] = der_ia5_char_encode(baseten[(y/10) % 10]); \
+    out[x++] = der_ia5_char_encode(baseten[y % 10]); \
+} while(0)
+
+/**
+  Encodes a Generalized time structure in DER format
+  @param utctime      The UTC time structure to encode
+  @param out          The destination of the DER encoding of the UTC time structure
+  @param outlen       [in/out] The length of the DER encoding
+  @return CRYPT_OK if successful
+*/
+int der_encode_generalizedtime(ltc_generalizedtime *gtime,
+                               unsigned char       *out,   unsigned long *outlen)
+{
+    unsigned long x, tmplen;
+    int           err;
+
+    LTC_ARGCHK(gtime != NULL);
+    LTC_ARGCHK(out     != NULL);
+    LTC_ARGCHK(outlen  != NULL);
+
+    if ((err = der_length_generalizedtime(gtime, &tmplen)) != CRYPT_OK) {
+       return err;
+    }
+    if (tmplen > *outlen) {
+        *outlen = tmplen;
+        return CRYPT_BUFFER_OVERFLOW;
+    }
+
+    /* store header */
+    out[0] = 0x18;
+
+    /* store values */
+    x = 2;
+    STORE_V4(gtime->YYYY);
+    STORE_V(gtime->MM);
+    STORE_V(gtime->DD);
+    STORE_V(gtime->hh);
+    STORE_V(gtime->mm);
+    STORE_V(gtime->ss);
+
+    if (gtime->fs) {
+       unsigned long divisor;
+       unsigned fs = gtime->fs;
+       unsigned len = 0;
+       out[x++] = der_ia5_char_encode('.');
+       divisor = 1;
+       do {
+          fs /= 10;
+          divisor *= 10;
+          len++;
+       } while(fs != 0);
+       while (len-- > 1) {
+          divisor /= 10;
+          out[x++] = der_ia5_char_encode(baseten[(gtime->fs/divisor) % 10]);
+       }
+       out[x++] = der_ia5_char_encode(baseten[gtime->fs % 10]);
+    }
+
+    if (gtime->off_mm || gtime->off_hh) {
+       out[x++] = der_ia5_char_encode(gtime->off_dir ? '-' : '+');
+       STORE_V(gtime->off_hh);
+       STORE_V(gtime->off_mm);
+    } else {
+       out[x++] = der_ia5_char_encode('Z');
+    }
+
+    /* store length */
+    out[1] = (unsigned char)(x - 2);
+
+    /* all good let's return */
+    *outlen = x;
+    return CRYPT_OK;
+}
+
+#endif
+
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */

src/pk/asn1/der/generalizedtime/der_length_generalizedtime.c

@@ -0,0 +1,60 @@
+/* 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 der_length_utctime.c
+  ASN.1 DER, get length of GeneralizedTime, Steffen Jaeckel
+  Based on der_length_utctime.c
+*/
+
+#ifdef LTC_DER
+
+/**
+  Gets length of DER encoding of GeneralizedTime
+  @param utctime      The UTC time structure to get the size of
+  @param outlen [out] The length of the DER encoding
+  @return CRYPT_OK if successful
+*/
+int der_length_generalizedtime(ltc_generalizedtime *gtime, unsigned long *outlen)
+{
+   LTC_ARGCHK(outlen  != NULL);
+   LTC_ARGCHK(gtime != NULL);
+
+   if (gtime->fs == 0) {
+      /* we encode as YYYYMMDDhhmmssZ */
+      *outlen = 2 + 14 + 1;
+   } else {
+      unsigned long len = 2 + 14 + 1;
+      unsigned fs = gtime->fs;
+      do {
+         fs /= 10;
+         len++;
+      } while(fs != 0);
+      if (gtime->off_hh == 0 && gtime->off_mm == 0) {
+         /* we encode as YYYYMMDDhhmmss.fsZ */
+         len += 1;
+      }
+      else {
+         /* we encode as YYYYMMDDhhmmss.fs{+|-}hh'mm' */
+         len += 5;
+      }
+      *outlen = len;
+   }
+
+   return CRYPT_OK;
+}
+
+#endif
+
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */

src/pk/asn1/der/sequence/der_decode_sequence_ex.c

@@ -244,6 +244,14 @@ int der_decode_sequence_ex(const unsigned char *in, unsigned long  inlen,
                }
                break;
 
+           case LTC_ASN1_GENERALIZEDTIME:
+               z = inlen;
+               if ((err = der_decode_generalizedtime(in + x, &z, data)) != CRYPT_OK) {
+                  if (!ordered) { continue; }
+                  goto LBL_ERR;
+               }
+               break;
+
            case LTC_ASN1_SET:
                z = inlen;
                if ((err = der_decode_set(in + x, z, data, size)) != CRYPT_OK) {

src/pk/asn1/der/sequence/der_decode_sequence_flexi.c

@@ -347,6 +347,25 @@ int der_decode_sequence_flexi(const unsigned char *in, unsigned long *inlen, ltc
             }
             break;
 
+         case 0x18:
+            l->type = LTC_ASN1_GENERALIZEDTIME;
+            l->size = len;
+
+            if ((l->data = XCALLOC(1, sizeof(ltc_generalizedtime))) == NULL) {
+               err = CRYPT_MEM;
+               goto error;
+            }
+
+            if ((err = der_decode_generalizedtime(in, &len, l->data)) != CRYPT_OK) {
+               goto error;
+            }
+
+            if ((err = der_length_generalizedtime(l->data, &len)) != CRYPT_OK) {
+               goto error;
+            }
+
+            break;
+
          case 0x20: /* Any CONSTRUCTED element that is neither SEQUENCE nor SET */
          case 0x30: /* SEQUENCE */
          case 0x31: /* SET */

src/pk/asn1/der/sequence/der_decode_sequence_multi.c

@@ -69,6 +69,7 @@ int der_decode_sequence_multi(const unsigned char *in, unsigned long inlen, ...)
            case LTC_ASN1_CHOICE:
            case LTC_ASN1_RAW_BIT_STRING:
            case LTC_ASN1_TELETEX_STRING:
+           case LTC_ASN1_GENERALIZEDTIME:
                 ++x;
                 break;
 
@@ -121,6 +122,7 @@ int der_decode_sequence_multi(const unsigned char *in, unsigned long inlen, ...)
            case LTC_ASN1_CHOICE:
            case LTC_ASN1_RAW_BIT_STRING:
            case LTC_ASN1_TELETEX_STRING:
+           case LTC_ASN1_GENERALIZEDTIME:
                 LTC_SET_ASN1(list, x++, type, data, size);
                 break;
            /* coverity[dead_error_line] */

src/pk/asn1/der/sequence/der_encode_sequence_ex.c

@@ -126,6 +126,13 @@ int der_encode_sequence_ex(ltc_asn1_list *list, unsigned long inlen,
                y += x;
                break;
 
+           case LTC_ASN1_GENERALIZEDTIME:
+               if ((err = der_length_generalizedtime(data, &x)) != CRYPT_OK) {
+                  goto LBL_ERR;
+               }
+               y += x;
+               break;
+
            case LTC_ASN1_SET:
            case LTC_ASN1_SETOF:
            case LTC_ASN1_SEQUENCE:
@@ -307,6 +314,15 @@ int der_encode_sequence_ex(ltc_asn1_list *list, unsigned long inlen,
                *outlen -= z;
                break;
 
+           case LTC_ASN1_GENERALIZEDTIME:
+               z = *outlen;
+               if ((err = der_encode_generalizedtime(data, out + x, &z)) != CRYPT_OK) {
+                  goto LBL_ERR;
+               }
+               x       += z;
+               *outlen -= z;
+               break;
+
            case LTC_ASN1_SET:
                z = *outlen;
                if ((err = der_encode_set(data, size, out + x, &z)) != CRYPT_OK) {

src/pk/asn1/der/sequence/der_encode_sequence_multi.c

@@ -68,6 +68,7 @@ int der_encode_sequence_multi(unsigned char *out, unsigned long *outlen, ...)
            case LTC_ASN1_SET:
            case LTC_ASN1_SETOF:
            case LTC_ASN1_RAW_BIT_STRING:
+           case LTC_ASN1_GENERALIZEDTIME:
                 ++x;
                 break;
 
@@ -120,6 +121,7 @@ int der_encode_sequence_multi(unsigned char *out, unsigned long *outlen, ...)
            case LTC_ASN1_SET:
            case LTC_ASN1_SETOF:
            case LTC_ASN1_RAW_BIT_STRING:
+           case LTC_ASN1_GENERALIZEDTIME:
                 LTC_SET_ASN1(list, x++, type, data, size);
                 break;
 

src/pk/asn1/der/sequence/der_length_sequence.c

@@ -122,6 +122,13 @@ int der_length_sequence(ltc_asn1_list *list, unsigned long inlen,
                y += x;
                break;
 
+           case LTC_ASN1_GENERALIZEDTIME:
+               if ((err = der_length_generalizedtime(data, &x)) != CRYPT_OK) {
+                  goto LBL_ERR;
+               }
+               y += x;
+               break;
+
            case LTC_ASN1_UTF8_STRING:
                if ((err = der_length_utf8_string(data, size, &x)) != CRYPT_OK) {
                   goto LBL_ERR;

src/pk/asn1/der/set/der_encode_set.c

@@ -34,6 +34,7 @@ static int ltc_to_asn1(ltc_asn1_type v)
       case LTC_ASN1_TELETEX_STRING:          return 0x14;
       case LTC_ASN1_IA5_STRING:              return 0x16;
       case LTC_ASN1_UTCTIME:                 return 0x17;
+      case LTC_ASN1_GENERALIZEDTIME:         return 0x18;
       case LTC_ASN1_SEQUENCE:                return 0x30;
       case LTC_ASN1_SET:
       case LTC_ASN1_SETOF:                   return 0x31;

testprof/der_tests.c

@@ -335,6 +335,19 @@ static void _der_tests_print_flexi(ltc_asn1_list* l, unsigned int level)
       text = buf;
     }
     break;
+  case LTC_ASN1_GENERALIZEDTIME:
+    name = "GENERALIZED TIME";
+    {
+      ltc_generalizedtime* gt = l->data;
+      if(gt->fs)
+         snprintf(buf, sizeof(buf), "%04d-%02d-%02d %02d:%02d:%02d.%02dZ",
+          gt->YYYY, gt->MM, gt->DD, gt->hh, gt->mm, gt->ss, gt->fs);
+      else
+         snprintf(buf, sizeof(buf), "%04d-%02d-%02d %02d:%02d:%02dZ",
+          gt->YYYY, gt->MM, gt->DD, gt->hh, gt->mm, gt->ss);
+      text = buf;
+    }
+    break;
   case LTC_ASN1_CHOICE:
     name = "CHOICE";
     break;
@@ -658,6 +671,7 @@ static void der_set_test(void)
      SEQUENCE {
         INTEGER 12345678
         UTCTIME { 91, 5, 6, 16, 45, 40, 1, 7, 0 }
+        GENERALIZEDTIME { 2017, 03, 21, 10, 21, 12, 4, 1, 2, 0 }
         SEQUENCE {
            OCTET STRING { 1, 2, 3, 4 }
            BIT STRING   { 1, 0, 0, 1 }
@@ -682,6 +696,7 @@ static void der_flexi_test(void)
    static const char ia5_str[]          = "ia5";
    static const unsigned long int_val   = 12345678UL;
    static const ltc_utctime   utctime   = { 91, 5, 6, 16, 45, 40, 1, 7, 0 };
+   static const ltc_generalizedtime gtime = { 2017, 03, 21, 10, 21, 12, 421, 1, 2, 0 };
    static const unsigned char oct_str[] = { 1, 2, 3, 4 };
    static const unsigned char bit_str[] = { 1, 0, 0, 1 };
    static const unsigned long oid_str[] = { 1, 2, 840, 113549 };
@@ -689,16 +704,17 @@ static void der_flexi_test(void)
    unsigned char encode_buf[192];
    unsigned long encode_buf_len, decode_len;
 
-   ltc_asn1_list static_list[5][3], *decoded_list, *l;
+   ltc_asn1_list static_list[5][4], *decoded_list, *l;
 
    /* build list */
    LTC_SET_ASN1(static_list[0], 0, LTC_ASN1_PRINTABLE_STRING, (void *)printable_str, strlen(printable_str));
    LTC_SET_ASN1(static_list[0], 1, LTC_ASN1_IA5_STRING,       (void *)ia5_str,       strlen(ia5_str));
-   LTC_SET_ASN1(static_list[0], 2, LTC_ASN1_SEQUENCE,         static_list[1],   3);
+   LTC_SET_ASN1(static_list[0], 2, LTC_ASN1_SEQUENCE,         static_list[1],   4);
 
    LTC_SET_ASN1(static_list[1], 0, LTC_ASN1_SHORT_INTEGER,    (void *)&int_val,         1);
    LTC_SET_ASN1(static_list[1], 1, LTC_ASN1_UTCTIME,          (void *)&utctime,         1);
-   LTC_SET_ASN1(static_list[1], 2, LTC_ASN1_SEQUENCE,         static_list[2],   3);
+   LTC_SET_ASN1(static_list[1], 2, LTC_ASN1_GENERALIZEDTIME,  (void *)&gtime,           1);
+   LTC_SET_ASN1(static_list[1], 3, LTC_ASN1_SEQUENCE,         static_list[2],   3);
 
    LTC_SET_ASN1(static_list[2], 0, LTC_ASN1_OCTET_STRING,     (void *)oct_str,          4);
    LTC_SET_ASN1(static_list[2], 1, LTC_ASN1_BIT_STRING,       (void *)bit_str,          4);
@@ -841,6 +857,26 @@ static void der_flexi_test(void)
       /* move to next */
       l = l->next;
 
+   /* GeneralizedTime */
+
+      if (l->next == NULL || l->child != NULL) {
+         fprintf(stderr, "(%d), %d, %lu, next=%p, prev=%p, parent=%p, child=%p\n", __LINE__, l->type, l->size, l->next, l->prev, l->parent, l->child);
+         exit(EXIT_FAILURE);
+      }
+
+      if (l->type != LTC_ASN1_GENERALIZEDTIME) {
+         fprintf(stderr, "(%d), %d, %lu, next=%p, prev=%p, parent=%p, child=%p\n", __LINE__, l->type, l->size, l->next, l->prev, l->parent, l->child);
+         exit(EXIT_FAILURE);
+      }
+
+      if (memcmp(l->data, &gtime, sizeof(gtime))) {
+         fprintf(stderr, "(%d), %d, %lu, next=%p, prev=%p, parent=%p, child=%p\n", __LINE__, l->type, l->size, l->next, l->prev, l->parent, l->child);
+         exit(EXIT_FAILURE);
+      }
+
+      /* move to next */
+      l = l->next;
+
    /* expect child anve move down */
 
       if (l->next != NULL || l->child == NULL) {
@@ -995,6 +1031,7 @@ static int der_choice_test(void)
    unsigned long integer, oidbuf[10], outlen, inlen, x, y;
    void          *mpinteger;
    ltc_utctime   utctime = { 91, 5, 6, 16, 45, 40, 1, 7, 0 };
+   ltc_generalizedtime gtime = { 2038, 01, 19, 3, 14, 8, 0, 0, 0, 0 };
 
    /* setup variables */
    for (x = 0; x < sizeof(bitbuf); x++)   { bitbuf[x]   = x & 1; }
@@ -1017,7 +1054,11 @@ static int der_choice_test(void)
           LTC_SET_ASN1(types, 4, LTC_ASN1_INTEGER, mpinteger, 1);
        }
        LTC_SET_ASN1(types, 5, LTC_ASN1_OBJECT_IDENTIFIER, oidbuf, sizeof(oidbuf)/sizeof(oidbuf[0]));
-       LTC_SET_ASN1(types, 6, LTC_ASN1_UTCTIME, &utctime, 1);
+       if (x > 7) {
+          LTC_SET_ASN1(types, 6, LTC_ASN1_UTCTIME, &utctime, 1);
+       } else {
+          LTC_SET_ASN1(types, 6, LTC_ASN1_GENERALIZEDTIME, &gtime, 1);
+       }
 
        LTC_SET_ASN1(host, 0, LTC_ASN1_CHOICE, types, 7);
 

testprof/rsa_test.c

@@ -46,6 +46,22 @@ static const unsigned char openssl_private_rsa[] = {
    0x78, 0x18, 0x5a, 0x79, 0x3d, 0x2e, 0x8e, 0x7e, 0x86, 0x0a, 0xe6, 0xa8, 0x33, 0xc1, 0x04, 0x17,
    0x4a, 0x9f,  };
 
+static const unsigned char x509_public_rsa[] =
+    "MIICdTCCAd4CCQCYjCwz0l9JpjANBgkqhkiG9w0BAQsFADB+MQswCQYDVQQGEwJD\
+     WjEPMA0GA1UECAwGTW9yYXZhMQ0wCwYDVQQHDARCcm5vMRAwDgYDVQQKDAdMVEMg\
+     THRkMQ8wDQYDVQQLDAZDcnlwdG8xEjAQBgNVBAMMCVRlc3QgQ2VydDEYMBYGCSqG\
+     SIb3DQEJARYJdGVzdEBjZXJ0MCAXDTE3MDMwOTIzNDMzOVoYDzIyOTAxMjIyMjM0\
+     MzM5WjB+MQswCQYDVQQGEwJDWjEPMA0GA1UECAwGTW9yYXZhMQ0wCwYDVQQHDARC\
+     cm5vMRAwDgYDVQQKDAdMVEMgTHRkMQ8wDQYDVQQLDAZDcnlwdG8xEjAQBgNVBAMM\
+     CVRlc3QgQ2VydDEYMBYGCSqGSIb3DQEJARYJdGVzdEBjZXJ0MIGfMA0GCSqGSIb3\
+     DQEBAQUAA4GNADCBiQKBgQDPmt5kitrIMyCp14MxGVSymoWnobd1M7aprIQks97b\
+     fYUtlmXlP3KVJJ8oaMpP20QcPmASit0mpev/C17UiDhJKm5bvxI3R70Fa7zb8+7k\
+     EY5BaHxhE9dCyIC+No/cCItPrKTidgzJY2xJWJPtzKrcJTsKYD+LVDrDTTHnlKRE\
+     /QIDAQABMA0GCSqGSIb3DQEBCwUAA4GBAApwWqupmmLGHeKOLFLcthQpAXXYep6T\
+     3S3e8X7fIG6TGhfvn5DHn+/V/C4184oOCwImI+VYRokdXdQ1AMGfVUomHJxsFPia\
+     bv5Aw3hiKsIG3jigKHwmMScgkl3yn+8hLkx6thNbqQoa6Yyo20RqaEFBwlZ5G8lF\
+     rZsdeO84SeCH";
+
 /* private keay - hexadecimal */
 static char *hex_d = "C862B9EADE44531D5697D9979E1ACF301E0A8845862930A34D9F616573E0D6878FB6F306A382DC7CACFE9B289AAEFDFBFE2F0ED89704E3BB1FD1EC0DBAA3497F47AC8A44047E86B739423FAD1EB70EA551F440631EFDBDEA9F419FA8901D6F0A5A9513110D80AF5F64988A2C786865B02B8BA25387CAF16404ABF27BDB83C881";
 static char *hex_dP = "6DEBC32D2EF05EA488310529008AD195299B83CF75DB31E37A27DE3A74300C764CD4502A402D39D99963A95D80AE53CA943F05231EF80504E1B835F217B3A089";
@@ -539,6 +555,19 @@ for (cnt = 0; cnt < len; ) {
        DOX(rsa_verify_hash_ex(p2, len2, p, 20, LTC_PKCS_1_V1_5, hash_idx, -1, &stat, &pubKey), "should succeed");
      DOX(stat == 0?CRYPT_OK:CRYPT_FAIL_TESTVECTOR, "should fail");
    }
+   rsa_free(&key);
+
+   /* try reading the public RSA key from a X509 certificate */
+   len3 = sizeof(tmp);
+   DO(base64_decode(x509_public_rsa, sizeof(x509_public_rsa), tmp, &len3));
+   DO(rsa_import_x509(tmp, len3, &key));
+   len = sizeof(tmp);
+   DO(rsa_export(tmp, &len, PK_PUBLIC, &key));
+   if (len != sizeof(openssl_public_rsa_stripped) || memcmp(tmp, openssl_public_rsa_stripped, len)) {
+      fprintf(stderr, "RSA public export failed to match rsa_import_x509\n");
+      return 1;
+   }
+   rsa_free(&key);
 
    len3 = sizeof(tmp);
    DO(base64_decode(_der_tests_cacert_root_cert, _der_tests_cacert_root_cert_size, tmp, &len3));