文章目錄

• • • • 1、Crypto API函數總結
      • 2、使用示例
      • • 2.1 RSA
        • 2.2 AES
        • 2.3 hash

1、Crypto API函數總結

TEE_AllocateOperation:

2、使用示例

2.1 RSA

(rsa_enc/rsa_dec)
TEE_AllocateOperation(&op, alg, mode, keySize);
TEE_SetOperationKey(op, key);
TEE_AsymmetricEncrypt(op, NULL, 0, inbuf, inbuf_len, outbuf, outbuf_len);
TEE_AsymmetricDecrypt(op, NULL, 0, inbuf, inbuf_len, outbuf, outbuf_len);
TEE_FreeOperation(op);

(rsa_sign/rsa_verify)
TEE_AllocateOperation(&op, alg, mode, keySize);
TEE_SetOperationKey(op, key);
TEE_AsymmetricSignDigest(op, NULL, 0, inbuf, inbuf_len, outbuf, outbuf_len);
TEE_AsymmetricVerifyDigest(op, NULL, 0, inbuf, inbuf_len, outbuf, *outbuf_len);
TEE_FreeOperation(op);

2.2 AES

TEE_AllocateOperation(&op, mode, alg, keysize);
TEE_SetOperationKey(op, aes_key);
TEE_CipherInit(op, iv, iv_len);
TEE_CipherUpdate(op, inbuf, (block/8), outbuf, &destLen);
TEE_CipherDoFinal(op, inbuf, inbuf_len, outbuf, &destLen);
TEE_FreeOperation(op);

2.3 hash

TEE_AllocateOperation(&op, mode, alg, keysize);
TEE_SetOperationKey(op, aes_key);
TEE_DigestUpdate(op, inbuf, (512/8));
TEE_DigestDoFinal(op, inbuf, inbuf_len, outbuf, outbuf_len);
TEE_FreeOperation(op);

總結

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