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crypto/builtin: Move AES_cbc_encrypt into cipher-builtin.inc.c

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By making the function private, we will be able to make further
simplifications.  Re-indent the migrated code and fix the missing
braces for CODING_STYLE.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This commit is contained in:
Richard Henderson 2020-08-28 10:05:19 -07:00 • committed by Daniel P. Berrangé
parent 8ee47cddbe
commit a2d76b6b2e
3 changed files with 56 additions and 55 deletions
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56
crypto/cipher-builtin.c.inc
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@ -104,6 +104,62 @@ static void do_aes_decrypt_ecb(const void *vctx,
}
}
static void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
const unsigned long length, const AES_KEY *key,
unsigned char *ivec, const int enc)
{
unsigned long n;
unsigned long len = length;
unsigned char tmp[AES_BLOCK_SIZE];
assert(in && out && key && ivec);
if (enc) {
while (len >= AES_BLOCK_SIZE) {
for (n = 0; n < AES_BLOCK_SIZE; ++n) {
tmp[n] = in[n] ^ ivec[n];
}
AES_encrypt(tmp, out, key);
memcpy(ivec, out, AES_BLOCK_SIZE);
len -= AES_BLOCK_SIZE;
in += AES_BLOCK_SIZE;
out += AES_BLOCK_SIZE;
}
if (len) {
for (n = 0; n < len; ++n) {
tmp[n] = in[n] ^ ivec[n];
}
for (n = len; n < AES_BLOCK_SIZE; ++n) {
tmp[n] = ivec[n];
}
AES_encrypt(tmp, tmp, key);
memcpy(out, tmp, AES_BLOCK_SIZE);
memcpy(ivec, tmp, AES_BLOCK_SIZE);
}
} else {
while (len >= AES_BLOCK_SIZE) {
memcpy(tmp, in, AES_BLOCK_SIZE);
AES_decrypt(in, out, key);
for (n = 0; n < AES_BLOCK_SIZE; ++n) {
out[n] ^= ivec[n];
}
memcpy(ivec, tmp, AES_BLOCK_SIZE);
len -= AES_BLOCK_SIZE;
in += AES_BLOCK_SIZE;
out += AES_BLOCK_SIZE;
}
if (len) {
memcpy(tmp, in, AES_BLOCK_SIZE);
AES_decrypt(tmp, tmp, key);
for (n = 0; n < len; ++n) {
out[n] = tmp[n] ^ ivec[n];
}
memcpy(ivec, tmp, AES_BLOCK_SIZE);
}
}
}
static int qcrypto_cipher_encrypt_aes(QCryptoCipher *cipher,
const void *in,
void *out,