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Merge variable key length for Blowfish in cipher layer

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This commit is contained in:
Paul Bakker 2014-06-24 11:02:11 +02:00
commit 00a6739cac
5 changed files with 80 additions and 20 deletions
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1
ChangeLog
View File

@ -10,6 +10,7 @@ Features
* Support for CCM and CCM_8 ciphersuites
* Support for parsing and verifying RSASSA-PSS signatures in the X.509
modules (certificates, CRLs and CSRs).
* Blowfish in the cipher layer now supports variable length keys.
Changes
* Add LINK_WITH_PTHREAD option in CMake for explicit linking that is

7
include/polarssl/cipher.h
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@ -61,6 +61,9 @@
#define POLARSSL_ERR_CIPHER_FULL_BLOCK_EXPECTED -0x6280 /**< Decryption of block requires a full block. */
#define POLARSSL_ERR_CIPHER_AUTH_FAILED -0x6300 /**< Authentication failed (for AEAD modes). */
#define POLARSSL_CIPHER_VARIABLE_IV_LEN 0x01 /**< Cipher accepts IVs of variable length */
#define POLARSSL_CIPHER_VARIABLE_KEY_LEN 0x02 /**< Cipher accepts keys of variable length */
#ifdef __cplusplus
extern "C" {
#endif
@ -238,8 +241,8 @@ typedef struct {
* For cipher that accept many sizes: recommended size */
unsigned int iv_size;
/** Flag for ciphers that accept many sizes of IV/NONCE */
int accepts_variable_iv_size;
/** Flags for variable IV size, variable key size, etc. */
int flags;
/** block size, in bytes */
unsigned int block_size;

7
library/cipher.c
View File

@ -168,8 +168,11 @@ int cipher_setkey( cipher_context_t *ctx, const unsigned char *key,
if( NULL == ctx || NULL == ctx->cipher_info )
return( POLARSSL_ERR_CIPHER_BAD_INPUT_DATA );
if( (int) ctx->cipher_info->key_length != key_length )
if( ( ctx->cipher_info->flags & POLARSSL_CIPHER_VARIABLE_KEY_LEN ) == 0 &&
(int) ctx->cipher_info->key_length != key_length )
{
return( POLARSSL_ERR_CIPHER_BAD_INPUT_DATA );
}
ctx->key_length = key_length;
ctx->operation = operation;
@ -204,7 +207,7 @@ int cipher_set_iv( cipher_context_t *ctx,
if( iv_len > POLARSSL_MAX_IV_LENGTH )
return( POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE );
if( ctx->cipher_info->accepts_variable_iv_size )
if( ( ctx->cipher_info->flags & POLARSSL_CIPHER_VARIABLE_IV_LEN ) != 0 )
actual_iv_size = iv_len;
else
{

32
library/cipher_wrap.c
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@ -374,7 +374,7 @@ const cipher_info_t aes_128_gcm_info = {
128,
"AES-128-GCM",
12,
1,
POLARSSL_CIPHER_VARIABLE_IV_LEN,
16,
&gcm_aes_info
};
@ -385,7 +385,7 @@ const cipher_info_t aes_192_gcm_info = {
192,
"AES-192-GCM",
12,
1,
POLARSSL_CIPHER_VARIABLE_IV_LEN,
16,
&gcm_aes_info
};
@ -396,7 +396,7 @@ const cipher_info_t aes_256_gcm_info = {
256,
"AES-256-GCM",
12,
1,
POLARSSL_CIPHER_VARIABLE_IV_LEN,
16,
&gcm_aes_info
};
@ -429,7 +429,7 @@ const cipher_info_t aes_128_ccm_info = {
128,
"AES-128-CCM",
12,
1,
POLARSSL_CIPHER_VARIABLE_IV_LEN,
16,
&ccm_aes_info
};
@ -440,7 +440,7 @@ const cipher_info_t aes_192_ccm_info = {
192,
"AES-192-CCM",
12,
1,
POLARSSL_CIPHER_VARIABLE_IV_LEN,
16,
&ccm_aes_info
};
@ -451,7 +451,7 @@ const cipher_info_t aes_256_ccm_info = {
256,
"AES-256-CCM",
12,
1,
POLARSSL_CIPHER_VARIABLE_IV_LEN,
16,
&ccm_aes_info
};
@ -728,7 +728,7 @@ const cipher_info_t camellia_128_gcm_info = {
128,
"CAMELLIA-128-GCM",
12,
1,
POLARSSL_CIPHER_VARIABLE_IV_LEN,
16,
&gcm_camellia_info
};
@ -739,7 +739,7 @@ const cipher_info_t camellia_192_gcm_info = {
192,
"CAMELLIA-192-GCM",
12,
1,
POLARSSL_CIPHER_VARIABLE_IV_LEN,
16,
&gcm_camellia_info
};
@ -750,7 +750,7 @@ const cipher_info_t camellia_256_gcm_info = {
256,
"CAMELLIA-256-GCM",
12,
1,
POLARSSL_CIPHER_VARIABLE_IV_LEN,
16,
&gcm_camellia_info
};
@ -783,7 +783,7 @@ const cipher_info_t camellia_128_ccm_info = {
128,
"CAMELLIA-128-CCM",
12,
1,
POLARSSL_CIPHER_VARIABLE_IV_LEN,
16,
&ccm_camellia_info
};
@ -794,7 +794,7 @@ const cipher_info_t camellia_192_ccm_info = {
192,
"CAMELLIA-192-CCM",
12,
1,
POLARSSL_CIPHER_VARIABLE_IV_LEN,
16,
&ccm_camellia_info
};
@ -805,7 +805,7 @@ const cipher_info_t camellia_256_ccm_info = {
256,
"CAMELLIA-256-CCM",
12,
1,
POLARSSL_CIPHER_VARIABLE_IV_LEN,
16,
&ccm_camellia_info
};
@ -1180,7 +1180,7 @@ const cipher_info_t blowfish_ecb_info = {
128,
"BLOWFISH-ECB",
8,
0,
POLARSSL_CIPHER_VARIABLE_KEY_LEN,
8,
&blowfish_info
};
@ -1192,7 +1192,7 @@ const cipher_info_t blowfish_cbc_info = {
128,
"BLOWFISH-CBC",
8,
0,
POLARSSL_CIPHER_VARIABLE_KEY_LEN,
8,
&blowfish_info
};
@ -1205,7 +1205,7 @@ const cipher_info_t blowfish_cfb64_info = {
128,
"BLOWFISH-CFB64",
8,
0,
POLARSSL_CIPHER_VARIABLE_KEY_LEN,
8,
&blowfish_info
};
@ -1218,7 +1218,7 @@ const cipher_info_t blowfish_ctr_info = {
128,
"BLOWFISH-CTR",
8,
0,
POLARSSL_CIPHER_VARIABLE_KEY_LEN,
8,
&blowfish_info
};

53
tests/suites/test_suite_cipher.blowfish.data
View File

@ -549,3 +549,56 @@ enc_dec_buf_multipart:POLARSSL_CIPHER_BLOWFISH_CTR:128:17:6:
BLOWFISH Encrypt and decrypt 32 bytes in multiple parts 1
depends_on:POLARSSL_BLOWFISH_C:POLARSSL_CIPHER_MODE_CTR
enc_dec_buf_multipart:POLARSSL_CIPHER_BLOWFISH_CTR:128:16:16:
BLOWFISH CBC Encrypt and decrypt 7 bytes, 192-bits key
depends_on:POLARSSL_BLOWFISH_C:POLARSSL_CIPHER_MODE_CBC:POLARSSL_CIPHER_PADDING_PKCS7
enc_dec_buf:POLARSSL_CIPHER_BLOWFISH_CBC:"BLOWFISH-CBC":192:7:-1
BLOWFISH CTR Encrypt and decrypt 7 bytes, 192-bits key
depends_on:POLARSSL_BLOWFISH_C:POLARSSL_CIPHER_MODE_CTR
enc_dec_buf:POLARSSL_CIPHER_BLOWFISH_CTR:"BLOWFISH-CTR":192:7:-1
BLOWFISH CFB64 Encrypt and decrypt 7 bytes, 192-bits key
depends_on:POLARSSL_BLOWFISH_C:POLARSSL_CIPHER_MODE_CFB
enc_dec_buf:POLARSSL_CIPHER_BLOWFISH_CFB64:"BLOWFISH-CFB64":192:7:-1
BLOWFISH ECB Encrypt test vector (SSLeay) #1
depends_on:POLARSSL_BLOWFISH_C
test_vec_ecb:POLARSSL_CIPHER_BLOWFISH_ECB:POLARSSL_ENCRYPT:"00000000000000000000000000000000":"0000000000000000":"4ef997456198dd78":0
BLOWFISH ECB Encrypt test vector (SSLeay) #2
depends_on:POLARSSL_BLOWFISH_C
test_vec_ecb:POLARSSL_CIPHER_BLOWFISH_ECB:POLARSSL_ENCRYPT:"ffffffffffffffffffffffffffffffff":"ffffffffffffffff":"51866fd5b85ecb8a":0
BLOWFISH ECB Encrypt test vector (SSLeay) #3
depends_on:POLARSSL_BLOWFISH_C
test_vec_ecb:POLARSSL_CIPHER_BLOWFISH_ECB:POLARSSL_ENCRYPT:"fedcba9876543210fedcba9876543210":"0123456789abcdef":"0aceab0fc6a0a28d":0
BLOWFISH ECB Encrypt test vector (SSLeay) #3, 64-bit key
depends_on:POLARSSL_BLOWFISH_C
test_vec_ecb:POLARSSL_CIPHER_BLOWFISH_ECB:POLARSSL_ENCRYPT:"fedcba9876543210":"0123456789abcdef":"0aceab0fc6a0a28d":0
BLOWFISH ECB Encrypt test vector (SSLeay) #3, 192-bit key
depends_on:POLARSSL_BLOWFISH_C
test_vec_ecb:POLARSSL_CIPHER_BLOWFISH_ECB:POLARSSL_ENCRYPT:"fedcba9876543210fedcba9876543210fedcba9876543210":"0123456789abcdef":"0aceab0fc6a0a28d":0
BLOWFISH ECB Decrypt test vector (SSLeay) #1
depends_on:POLARSSL_BLOWFISH_C
test_vec_ecb:POLARSSL_CIPHER_BLOWFISH_ECB:POLARSSL_DECRYPT:"00000000000000000000000000000000":"4ef997456198dd78":"0000000000000000":0
BLOWFISH ECB Decrypt test vector (SSLeay) #2
depends_on:POLARSSL_BLOWFISH_C
test_vec_ecb:POLARSSL_CIPHER_BLOWFISH_ECB:POLARSSL_DECRYPT:"ffffffffffffffffffffffffffffffff":"51866fd5b85ecb8a":"ffffffffffffffff":0
BLOWFISH ECB Decrypt test vector (SSLeay) #3
depends_on:POLARSSL_BLOWFISH_C
test_vec_ecb:POLARSSL_CIPHER_BLOWFISH_ECB:POLARSSL_DECRYPT:"3849674c2602319e3849674c2602319e":"a25e7856cf2651eb":"51454b582ddf440a":0
BLOWFISH ECB Decrypt test vector (SSLeay) #3, 64-bit key
depends_on:POLARSSL_BLOWFISH_C
test_vec_ecb:POLARSSL_CIPHER_BLOWFISH_ECB:POLARSSL_DECRYPT:"3849674c2602319e":"a25e7856cf2651eb":"51454b582ddf440a":0
BLOWFISH ECB Decrypt test vector (SSLeay) #3, 192-bit key
depends_on:POLARSSL_BLOWFISH_C
test_vec_ecb:POLARSSL_CIPHER_BLOWFISH_ECB:POLARSSL_DECRYPT:"3849674c2602319e3849674c2602319e3849674c2602319e":"a25e7856cf2651eb":"51454b582ddf440a":0