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Added crypto callback support for AES CCM.

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This commit is contained in:
David Garske
2021-11-02 09:53:55 -07:00
parent 7e01af0121
commit 82c106be80
4 changed files with 145 additions and 1 deletions
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20
wolfcrypt/src/aes.c
View File

@ -9938,6 +9938,16 @@ int wc_AesCcmEncrypt(Aes* aes, byte* out, const byte* in, word32 inSz,
return BAD_FUNC_ARG;
}
#ifdef WOLF_CRYPTO_CB
if (aes->devId != INVALID_DEVID) {
int ret = wc_CryptoCb_AesCcmEncrypt(aes, out, in, inSz, nonce, nonceSz,
authTag, authTagSz, authIn, authInSz);
if (ret != CRYPTOCB_UNAVAILABLE)
return ret;
/* fall-through when unavailable */
}
#endif
XMEMSET(A, 0, sizeof(A));
XMEMCPY(B+1, nonce, nonceSz);
lenSz = AES_BLOCK_SIZE - 1 - (byte)nonceSz;
@ -10040,6 +10050,16 @@ int wc_AesCcmDecrypt(Aes* aes, byte* out, const byte* in, word32 inSz,
return BAD_FUNC_ARG;
}
#ifdef WOLF_CRYPTO_CB
if (aes->devId != INVALID_DEVID) {
int ret = wc_CryptoCb_AesCcmDecrypt(aes, out, in, inSz, nonce, nonceSz,
authTag, authTagSz, authIn, authInSz);
if (ret != CRYPTOCB_UNAVAILABLE)
return ret;
/* fall-through when unavailable */
}
#endif
o = out;
oSz = inSz;
XMEMSET(A, 0, sizeof A);

84
wolfcrypt/src/cryptocb.c
View File

@ -578,6 +578,90 @@ int wc_CryptoCb_AesGcmDecrypt(Aes* aes, byte* out,
}
#endif /* HAVE_AESGCM */
#ifdef HAVE_AESCCM
int wc_CryptoCb_AesCcmEncrypt(Aes* aes, byte* out,
const byte* in, word32 sz,
const byte* nonce, word32 nonceSz,
byte* authTag, word32 authTagSz,
const byte* authIn, word32 authInSz)
{
int ret = CRYPTOCB_UNAVAILABLE;
CryptoCb* dev;
/* locate registered callback */
if (aes) {
dev = wc_CryptoCb_FindDevice(aes->devId);
}
else {
/* locate first callback and try using it */
dev = wc_CryptoCb_FindDeviceByIndex(0);
}
if (dev && dev->cb) {
wc_CryptoInfo cryptoInfo;
XMEMSET(&cryptoInfo, 0, sizeof(cryptoInfo));
cryptoInfo.algo_type = WC_ALGO_TYPE_CIPHER;
cryptoInfo.cipher.type = WC_CIPHER_AES_CCM;
cryptoInfo.cipher.enc = 1;
cryptoInfo.cipher.aesccm_enc.aes = aes;
cryptoInfo.cipher.aesccm_enc.out = out;
cryptoInfo.cipher.aesccm_enc.in = in;
cryptoInfo.cipher.aesccm_enc.sz = sz;
cryptoInfo.cipher.aesccm_enc.nonce = nonce;
cryptoInfo.cipher.aesccm_enc.nonceSz = nonceSz;
cryptoInfo.cipher.aesccm_enc.authTag = authTag;
cryptoInfo.cipher.aesccm_enc.authTagSz = authTagSz;
cryptoInfo.cipher.aesccm_enc.authIn = authIn;
cryptoInfo.cipher.aesccm_enc.authInSz = authInSz;
ret = dev->cb(dev->devId, &cryptoInfo, dev->ctx);
}
return wc_CryptoCb_TranslateErrorCode(ret);
}
int wc_CryptoCb_AesCcmDecrypt(Aes* aes, byte* out,
const byte* in, word32 sz,
const byte* nonce, word32 nonceSz,
const byte* authTag, word32 authTagSz,
const byte* authIn, word32 authInSz)
{
int ret = CRYPTOCB_UNAVAILABLE;
CryptoCb* dev;
/* locate registered callback */
if (aes) {
dev = wc_CryptoCb_FindDevice(aes->devId);
}
else {
/* locate first callback and try using it */
dev = wc_CryptoCb_FindDeviceByIndex(0);
}
if (dev && dev->cb) {
wc_CryptoInfo cryptoInfo;
XMEMSET(&cryptoInfo, 0, sizeof(cryptoInfo));
cryptoInfo.algo_type = WC_ALGO_TYPE_CIPHER;
cryptoInfo.cipher.type = WC_CIPHER_AES_CCM;
cryptoInfo.cipher.enc = 0;
cryptoInfo.cipher.aesccm_dec.aes = aes;
cryptoInfo.cipher.aesccm_dec.out = out;
cryptoInfo.cipher.aesccm_dec.in = in;
cryptoInfo.cipher.aesccm_dec.sz = sz;
cryptoInfo.cipher.aesccm_enc.nonce = nonce;
cryptoInfo.cipher.aesccm_enc.nonceSz = nonceSz;
cryptoInfo.cipher.aesccm_dec.authTag = authTag;
cryptoInfo.cipher.aesccm_dec.authTagSz = authTagSz;
cryptoInfo.cipher.aesccm_dec.authIn = authIn;
cryptoInfo.cipher.aesccm_dec.authInSz = authInSz;
ret = dev->cb(dev->devId, &cryptoInfo, dev->ctx);
}
return wc_CryptoCb_TranslateErrorCode(ret);
}
#endif /* HAVE_AESCCM */
#ifdef HAVE_AES_CBC
int wc_CryptoCb_AesCbcEncrypt(Aes* aes, byte* out,
const byte* in, word32 sz)

39
wolfssl/wolfcrypt/cryptocb.h
View File

@ -225,6 +225,32 @@ typedef struct wc_CryptoInfo {
word32 authInSz;
} aesgcm_dec;
#endif /* HAVE_AESGCM */
#ifdef HAVE_AESCCM
struct {
Aes* aes;
byte* out;
const byte* in;
word32 sz;
const byte* nonce;
word32 nonceSz;
byte* authTag;
word32 authTagSz;
const byte* authIn;
word32 authInSz;
} aesccm_enc;
struct {
Aes* aes;
byte* out;
const byte* in;
word32 sz;
const byte* nonce;
word32 nonceSz;
const byte* authTag;
word32 authTagSz;
const byte* authIn;
word32 authInSz;
} aesccm_dec;
#endif /* HAVE_AESCCM */
#ifdef HAVE_AES_CBC
struct {
Aes* aes;
@ -385,6 +411,19 @@ WOLFSSL_LOCAL int wc_CryptoCb_AesGcmDecrypt(Aes* aes, byte* out,
const byte* authTag, word32 authTagSz,
const byte* authIn, word32 authInSz);
#endif /* HAVE_AESGCM */
#ifdef HAVE_AESCCM
WOLFSSL_LOCAL int wc_CryptoCb_AesCcmEncrypt(Aes* aes, byte* out,
const byte* in, word32 sz,
const byte* nonce, word32 nonceSz,
byte* authTag, word32 authTagSz,
const byte* authIn, word32 authInSz);
WOLFSSL_LOCAL int wc_CryptoCb_AesCcmDecrypt(Aes* aes, byte* out,
const byte* in, word32 sz,
const byte* nonce, word32 nonceSz,
const byte* authTag, word32 authTagSz,
const byte* authIn, word32 authInSz);
#endif /* HAVE_AESCCM */
#ifdef HAVE_AES_CBC
WOLFSSL_LOCAL int wc_CryptoCb_AesCbcEncrypt(Aes* aes, byte* out,
const byte* in, word32 sz);

3
wolfssl/wolfcrypt/types.h
View File

@ -954,13 +954,14 @@ decouple library dependencies with standard string, memory and so on.
WC_CIPHER_AES_CTR = 4,
WC_CIPHER_AES_XTS = 5,
WC_CIPHER_AES_CFB = 6,
WC_CIPHER_AES_CCM = 12,
WC_CIPHER_DES3 = 7,
WC_CIPHER_DES = 8,
WC_CIPHER_CHACHA = 9,
WC_CIPHER_HC128 = 10,
WC_CIPHER_IDEA = 11,
WC_CIPHER_MAX = WC_CIPHER_HC128
WC_CIPHER_MAX = WC_CIPHER_AES_CCM
};
/* PK=public key (asymmetric) based algorithms */