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Variable key length crypters use default key length if zero given

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This commit is contained in:
Martin Willi
2010-08-16 17:06:27 +02:00
parent 806ec8b1d6
commit e2c3b4820b
5 changed files with 54 additions and 64 deletions
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src/libstrongswan/plugins/gcrypt/gcrypt_crypter.c
+5 -1
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@@ -194,7 +194,7 @@ gcrypt_crypter_t *gcrypt_crypter_create(encryption_algorithm_t algo,
gcrypt_alg = GCRY_CIPHER_CAST5;
break;
case ENCR_BLOWFISH:
if (key_size != 16)
if (key_size != 16 && key_size != 0)
{ /* gcrypt currently supports 128 bit blowfish only */
return NULL;
}
@@ -206,6 +206,7 @@ gcrypt_crypter_t *gcrypt_crypter_create(encryption_algorithm_t algo,
case ENCR_AES_CBC:
switch (key_size)
{
case 0:
case 16:
gcrypt_alg = GCRY_CIPHER_AES128;
break;
@@ -226,6 +227,7 @@ gcrypt_crypter_t *gcrypt_crypter_create(encryption_algorithm_t algo,
switch (key_size)
{
#ifdef HAVE_GCRY_CIPHER_CAMELLIA
case 0:
case 16:
gcrypt_alg = GCRY_CIPHER_CAMELLIA128;
break;
@@ -243,6 +245,7 @@ gcrypt_crypter_t *gcrypt_crypter_create(encryption_algorithm_t algo,
case ENCR_SERPENT_CBC:
switch (key_size)
{
case 0:
case 16:
gcrypt_alg = GCRY_CIPHER_SERPENT128;
break;
@@ -259,6 +262,7 @@ gcrypt_crypter_t *gcrypt_crypter_create(encryption_algorithm_t algo,
case ENCR_TWOFISH_CBC:
switch (key_size)
{
case 0:
case 16:
gcrypt_alg = GCRY_CIPHER_TWOFISH128;
break;