37 lines
957 B
C
37 lines
957 B
C
#include "sm4_core.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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static int rk_crypto_ecb128_encrypt(void *ctx, const unsigned char *in,
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unsigned int length, unsigned char *out,
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block128_f block) {
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unsigned int i = 0;
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for (i = 0; i < length / SM4_BLOCK_SIZE; i++) {
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(*block)(in + i * SM4_BLOCK_SIZE, out + i * SM4_BLOCK_SIZE, ctx);
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};
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return 0;
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}
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int rk_sm4_ecb_encrypt(const unsigned char *in, unsigned char *out,
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unsigned int length, const unsigned char *key,
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const int key_len, const int enc) {
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sm4_context ctx;
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if (key_len != 16)
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return -1;
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if (length % SM4_BLOCK_SIZE || length == 0)
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return -1;
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if (enc) {
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rk_sm4_setkey_enc(&ctx, key);
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} else {
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rk_sm4_setkey_dec(&ctx, key);
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}
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rk_crypto_ecb128_encrypt((void *)&ctx, in, length, out, rk_rk_sm4_crypt_ecb);
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return 0;
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}
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