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Add cipher abstraction and test cases for OFB block mode

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Adds OFB as additional block mode in the cipher abstraction, and additional
test cases for that block mode.
This commit is contained in:
Simon Butcher 2018-04-22 22:58:07 +01:00
parent 0301884f00
commit 8c0fd1e881
6 changed files with 218 additions and 1 deletions
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9
include/mbedtls/cipher_internal.h
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@ -59,11 +59,20 @@ struct mbedtls_cipher_base_t
#if defined(MBEDTLS_CIPHER_MODE_CFB)
/** Encrypt using CFB (Full length) */
int (*cfb_func)( void *ctx, mbedtls_operation_t mode, size_t length, size_t *iv_off,
unsigned char *iv, const unsigned char *input,
unsigned char *output );
#endif
#if defined(MBEDTLS_CIPHER_MODE_OFB)
/** Encrypt using OFB (Full length) */
int (*ofb_func)( void *ctx, size_t length, size_t *iv_off,
unsigned char *iv,
const unsigned char *input,
unsigned char *output );
#endif
#if defined(MBEDTLS_CIPHER_MODE_CTR)
/** Encrypt using CTR */
int (*ctr_func)( void *ctx, size_t length, size_t *nc_off,