#include <libkern/crypto/crypto_internal.h>
#include <libkern/crypto/aes.h>
#include <corecrypto/ccmode.h>
#include <corecrypto/ccaes.h>
#include <kern/debug.h>
aes_rval aes_encrypt_key(const unsigned char *key, int key_len, aes_encrypt_ctx cx[1])
{
const struct ccmode_cbc *cbc = g_crypto_funcs->ccaes_cbc_encrypt;
if(cbc->size>sizeof(aes_encrypt_ctx))
panic("%s: inconsistent size for AES encrypt context", __FUNCTION__);
cccbc_init(cbc, cx[0].ctx, key_len, key);
return aes_good;
}
aes_rval aes_encrypt_cbc(const unsigned char *in_blk, const unsigned char *in_iv, unsigned int num_blk,
unsigned char *out_blk, aes_encrypt_ctx cx[1])
{
const struct ccmode_cbc *cbc = g_crypto_funcs->ccaes_cbc_encrypt;
cccbc_iv_decl(cbc->block_size, ctx_iv);
cccbc_set_iv(cbc, ctx_iv, in_iv);
cccbc_update(cbc, cx[0].ctx, ctx_iv, num_blk, in_blk, out_blk);
return aes_good;
}
#if defined (__i386__) || defined (__x86_64__)
aes_rval aes_encrypt(const unsigned char *in_blk, unsigned char *out_blk, aes_encrypt_ctx cx[1])
{
return aes_encrypt_cbc(in_blk, NULL, 1, out_blk, cx);
}
#endif
aes_rval aes_decrypt_key(const unsigned char *key, int key_len, aes_decrypt_ctx cx[1])
{
const struct ccmode_cbc *cbc = g_crypto_funcs->ccaes_cbc_decrypt;
if(cbc->size>sizeof(aes_decrypt_ctx))
panic("%s: inconsistent size for AES decrypt context", __FUNCTION__);
cccbc_init(cbc, cx[0].ctx, key_len, key);
return aes_good;
}
aes_rval aes_decrypt_cbc(const unsigned char *in_blk, const unsigned char *in_iv, unsigned int num_blk,
unsigned char *out_blk, aes_decrypt_ctx cx[1])
{
const struct ccmode_cbc *cbc = g_crypto_funcs->ccaes_cbc_decrypt;
cccbc_iv_decl(cbc->block_size, ctx_iv);
cccbc_set_iv(cbc, ctx_iv, in_iv);
cccbc_update(cbc, cx[0].ctx, ctx_iv, num_blk, in_blk, out_blk);
return aes_good;
}
#if defined (__i386__) || defined (__x86_64__)
aes_rval aes_decrypt(const unsigned char *in_blk, unsigned char *out_blk, aes_decrypt_ctx cx[1])
{
return aes_decrypt_cbc(in_blk, NULL, 1, out_blk, cx);
}
#endif
aes_rval aes_encrypt_key128(const unsigned char *key, aes_encrypt_ctx cx[1])
{
return aes_encrypt_key(key, 16, cx);
}
aes_rval aes_decrypt_key128(const unsigned char *key, aes_decrypt_ctx cx[1])
{
return aes_decrypt_key(key, 16, cx);
}
aes_rval aes_encrypt_key256(const unsigned char *key, aes_encrypt_ctx cx[1])
{
return aes_encrypt_key(key, 32, cx);
}
aes_rval aes_decrypt_key256(const unsigned char *key, aes_decrypt_ctx cx[1])
{
return aes_decrypt_key(key, 32, cx);
}