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small refactoring

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This commit is contained in:
merlokk 2018-11-01 15:09:01 +02:00
commit 64cb771757
1 changed files with 1 additions and 4 deletions
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5
common/polarssl/libpcrypto.c
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@ -51,12 +51,9 @@ int aes_decode(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *output, int l
// https://csrc.nist.gov/CSRC/media/Projects/Cryptographic-Standards-and-Guidelines/documents/examples/AES_CMAC.pdf // https://csrc.nist.gov/CSRC/media/Projects/Cryptographic-Standards-and-Guidelines/documents/examples/AES_CMAC.pdf
int aes_cmac(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *mac, int length) { int aes_cmac(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *mac, int length) {
memset(mac, 0x00, 16); memset(mac, 0x00, 16);
uint8_t iiv[16] = {0};
if (iv)
memcpy(iiv, iv, 16);
// NIST 800-38B // NIST 800-38B
return mbedtls_aes_cmac_prf_128(key, 16, input, length, mac); return mbedtls_aes_cmac_prf_128(key, MBEDTLS_AES_BLOCK_SIZE, input, length, mac);
} }
int aes_cmac8(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *mac, int length) { int aes_cmac8(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *mac, int length) {