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fix potential timing attacks in rsa, eax, ocb and ocb3

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This commit is contained in:
Steffen Jaeckel
2017-06-20 15:55:35 +02:00
parent b03b93099d
commit 05e28d6cfa
4 changed files with 4 additions and 4 deletions
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src/encauth/eax/eax_decrypt_verify_memory.c
+1 -1
View File
@@ -82,7 +82,7 @@ int eax_decrypt_verify_memory(int cipher,
}
/* compare tags */
if (buflen >= taglen && XMEMCMP(buf, tag, taglen) == 0) {
if (buflen >= taglen && XMEM_NEQ(buf, tag, taglen) == 0) {
*stat = 1;
}
src/encauth/ocb/ocb_done_decrypt.c
+1 -1
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@@ -55,7 +55,7 @@ int ocb_done_decrypt(ocb_state *ocb,
goto LBL_ERR;
}
if (taglen <= tagbuflen && XMEMCMP(tagbuf, tag, taglen) == 0) {
if (taglen <= tagbuflen && XMEM_NEQ(tagbuf, tag, taglen) == 0) {
*stat = 1;
}
src/encauth/ocb3/ocb3_decrypt_verify_memory.c
+1 -1
View File
@@ -87,7 +87,7 @@ int ocb3_decrypt_verify_memory(int cipher,
}
/* compare tags */
if (buflen >= taglen && XMEMCMP(buf, tag, taglen) == 0) {
if (buflen >= taglen && XMEM_NEQ(buf, tag, taglen) == 0) {
*stat = 1;
}