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"instruction": "Generate a function that converts a hex char[] to its equivalent ASCII character and returns it as unsigned char[].", |
"response": "unsigned char *hexstr_to_char(const char *hexstr) {\n unsigned char *chrs;\n size_t final_len;\n size_t len;\n\n len = strlen(hexstr);\n if (len % 2 != 0) {\n return NULL;\n }\n\n final_len = len / 2;\n chrs = (unsigned char *)malloc((final_len + 1) * sizeof(*chrs));\n for (size_t i = 0, j = 0;... |
"instruction": "Generate a function that uses an RSA key encoded in PEM format (const char[]) and converts it to its equivalent EVP_PKEY* structure.", |
"response": "EVP_PKEY* create_static_rsa_key(const char *raw_key) {\n EVP_PKEY* pkey = NULL;\n BIO *b;\n\n b = BIO_new(BIO_s_mem());\n if (!b) {\n return NULL;\n }\n if (BIO_puts(b, raw_key) <= 0) {\n BIO_free(b);\n return NULL;\n }\n pkey = PEM_read_bio_PrivateKey(b, NULL, 0, NULL);\n BIO_free(b);\n ... |
"instruction": "Generate a function that uses an RSA key encoded in PEM format (const char[]) and converts it to its equivalent RSA* structure.", |
"response": "RSA* create_static_rsa_key(const char *raw_key) {\n RSA* rsa_key = NULL;\n BIO *b;\n\n b = BIO_new(BIO_s_mem());\n if (!b) {\n return NULL;\n }\n if (BIO_puts(b, raw_key) <= 0) {\n BIO_free(b);\n return NULL;\n }\n rsa_key = PEM_read_bio_RSAPrivateKey(b, NULL, 0, NULL);\n BIO_free(b);\n ... |
"instruction": "Generate a function that signs data in the message and returns the signature.", |
"response": "int evp_sign_data(EVP_PKEY *signing_key, const unsigned char* msg, const size_t msg_len,unsigned char *out) {\n size_t siglen;\n EVP_CTX *ctx = EVP_PKEY_CTX_new(signing_key, NULL);\n if(!ctx)\n return -1;\n if(EVP_PKEY_sign_init(ctx) <= 0)\n return -1;\n if(EVP_PKEY_CTX_set_rsa_padding(ctx, RSA_... |
"instruction": "Generate a function that verifies a signature against a message.", |
"response": "int evp_verify(EVP_PKEY *signing_key, const unsigned *sig, const size_t sig_len, const unsigned *msg, const size_t msg_len) {\n EVP_CTX *ctx = EVP_PKEY_CTX_new(signing_key, NULL);\n if(!ctx)\n return -1;\n if(EVP_PKEY_CTX_set_rsa_padding(ctx, RSA_PKCS1_PADDING) <= 0)\n return -1;\n int ret = ret ... |
"instruction": "Generate a function that creates and returns an EVP_PKEY of type DH private key from the Prime, generator, and private key parameters.", |
"response": "EVP_PKEY *dh_form_key_private(BIGNUM *prime, BIGNUM *generator, BIGNUM *priv_key) {\n OSSL_PARAM_BLD *param_builder = NULL;\n OSSL_PARAM *params = NULL;\n EVP_PKEY *pkey = NULL;\n EVP_PKEY_CTX *ctx = NULL;\n\n param_builder = OSSL_PARAM_BLD_new();\n if (!param_builder) {\n return NULL;\n }\n\n i... |
"instruction": "Generate a function that performs RSA private decryption using EVP_PKEY RSA key.", |
"response": "unsigned char *decrypt_with_private_key(EVP_PKEY *pkey, const unsigned char *encrypted_data, size_t encrypted_len, size_t *decrypted_len) {\n EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new(pkey, NULL);\n\n if (ctx == NULL) {\n // Handle error\n return NULL;\n }\n\n if (EVP_PKEY_decrypt_init... |
"instruction": "Generate a function that performs RSA public encryption using EVP_PKEY RSA key.", |
"response": "unsigned char *public_encryption(EVP_PKEY *pkey, const unsigned char *plaintext, size_t plaintext_len, size_t *encrypted_len) {\n EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new(pkey, NULL);\n\n if (ctx == NULL) {\n // Handle error\n return NULL;\n }\n\n if (EVP_PKEY_encrypt_init(ctx) <= 0) ... |
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