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淘宝小网站怎么做的,秦皇岛企业建设网站,网页设计与制作大全,中国建设银行官网首页网站文章目录 openssl3.2 - 官方demo学习 - encode - rsa_encode.c概述笔记END openssl3.2 - 官方demo学习 - encode - rsa_encode.c 概述 命令行参数 server_priv_key.pem client_priv_key.pem 这2个证书是前面certs目录里面做的 官方这个程序有bug, 给出2个证书, 还要从屏幕上输… 文章目录 openssl3.2 - 官方demo学习 - encode - rsa_encode.c概述笔记END openssl3.2 - 官方demo学习 - encode - rsa_encode.c 概述 命令行参数 server_priv_key.pem client_priv_key.pem 这2个证书是前面certs目录里面做的 官方这个程序有bug, 给出2个证书, 还要从屏幕上输入 if (OSSL_DECODER_from_fp(dctx, f) 0) { /* 在这里阻塞住了, 让在屏幕上输入东西, 让我输入啥啊 ? 关键是输入了, 回车也不返回程序. 先放这里, 等整明白了, 再来修正这个工程. 笔记 /! \file rsa_encode.c \note openssl3.2 - 官方demo学习 - encode - rsa_encode.c 命令行参数 server_priv_key.pem client_priv_key.pem 这2个证书是前面certs目录里面做的 官方这个程序有bug, 给出2个证书, 还要从屏幕上输入 if (OSSL_DECODER_from_fp(dctx, f) 0) { / 在这里阻塞住了, 让在屏幕上输入东西, 让我输入啥啊 ? 关键是输入了, 回车也不返回程序. 先放这里, 等整明白了, 再来修正这个工程. //-* Copyright 2022-2023 The OpenSSL Project Authors. All Rights Reserved.** Licensed under the Apache License 2.0 (the License). You may not use* this file except in compliance with the License. You can obtain a copy* in the file LICENSE in the source distribution or at* https://www.openssl.org/source/license.html*/ #include string.h #include openssl/decoder.h #include openssl/encoder.h #include openssl/evp.h#include my_openSSL_lib.h/** Example showing the encoding and decoding of RSA public and private keys. A* PEM-encoded RSA key is read in from stdin, decoded, and then re-encoded and* output for demonstration purposes. Both public and private keys are accepted.** This can be used to load RSA keys from a file or save RSA keys to a file.// A property query used for selecting algorithm implementations. / static const char propq NULL;/** Load a PEM-encoded RSA key from a file, optionally decrypting it with a* supplied passphrase./ static EVP_PKEY load_key(OSSL_LIB_CTX* libctx, FILE* f, const char* passphrase) {int ret 0;EVP_PKEY* pkey NULL;OSSL_DECODER_CTX* dctx NULL;int selection 0;/** Create PEM decoder context expecting an RSA key.** For raw (non-PEM-encoded) keys, change PEM to DER.** The selection argument here specifies whether we are willing to accept a* public key, private key, or either. If it is set to zero, either will be* accepted. If set to EVP_PKEY_KEYPAIR, a private key will be required, and* if set to EVP_PKEY_PUBLIC_KEY, a public key will be required./dctx OSSL_DECODER_CTX_new_for_pkey(pkey, PEM, NULL, RSA,selection,libctx, propq);if (dctx NULL) {fprintf(stderr, OSSL_DECODER_CTX_new_for_pkey() failed\n);goto cleanup;}/** Set passphrase if provided; needed to decrypt encrypted PEM files. If the input is not encrypted, any passphrase provided is ignored.** Alternative methods for specifying passphrases exist, such as a callback* (see OSSL_DECODER_CTX_set_passphrase_cb(3)), which may be more useful for* interactive applications which do not know if a passphrase should be* prompted for in advance, or for GUI applications./if (passphrase ! NULL) {if (OSSL_DECODER_CTX_set_passphrase(dctx,(const unsigned char)passphrase,strlen(passphrase)) 0) {fprintf(stderr, OSSL_DECODER_CTX_set_passphrase() failed\n);goto cleanup;}}/* Do the decode, reading from file. /if (OSSL_DECODER_from_fp(dctx, f) 0) { / 在这里阻塞住了, 让在屏幕上输入东西, 让我输入啥啊 ? / fprintf(stderr, OSSL_DECODER_from_fp() failed\n);goto cleanup;}ret 1; cleanup:OSSL_DECODER_CTX_free(dctx);/** pkey is created by OSSL_DECODER_CTX_new_for_pkey, but we might fail subsequently, so ensure its properly freed* in this case./if (ret 0) {EVP_PKEY_free(pkey);pkey NULL;}return pkey; }/** Store an RSA public or private key to a file using PEM encoding.** If a passphrase is supplied, the file is encrypted, otherwise it is unencrypted./ static int store_key(EVP_PKEY pkey, FILE* f, const char* passphrase) {int ret 0;int selection;OSSL_ENCODER_CTX* ectx NULL;/** Create a PEM encoder context.** For raw (non-PEM-encoded) output, change PEM to DER.** The selection argument controls whether the private key is exported* (EVP_PKEY_KEYPAIR), or only the public key (EVP_PKEY_PUBLIC_KEY). The* former will fail if we only have a public key.** Note that unlike the decode API, you cannot specify zero here.** Purely for the sake of demonstration, here we choose to export the whole* key if a passphrase is provided and the public key otherwise./selection (passphrase ! NULL)? EVP_PKEY_KEYPAIR: EVP_PKEY_PUBLIC_KEY;ectx OSSL_ENCODER_CTX_new_for_pkey(pkey, selection, PEM, NULL, propq);if (ectx NULL) {fprintf(stderr, OSSL_ENCODER_CTX_new_for_pkey() failed\n);goto cleanup;}/** Set passphrase if provided; the encoded output will then be encrypted using the passphrase.** Alternative methods for specifying passphrases exist, such as a callback* (see OSSL_ENCODER_CTX_set_passphrase_cb(3), just as for OSSL_DECODER_CTX;* however you are less likely to need them as you presumably know whether* encryption is desired in advance.** Note that specifying a passphrase alone is not enough to cause the* key to be encrypted. You must set both a cipher and a passphrase./if (passphrase ! NULL) {/ Set cipher. AES-128-CBC is a reasonable default. /if (OSSL_ENCODER_CTX_set_cipher(ectx, AES-128-CBC, propq) 0) {fprintf(stderr, OSSL_ENCODER_CTX_set_cipher() failed\n);goto cleanup;}/ Set passphrase. /if (OSSL_ENCODER_CTX_set_passphrase(ectx,(const unsigned char)passphrase,strlen(passphrase)) 0) {fprintf(stderr, OSSL_ENCODER_CTX_set_passphrase() failed\n);goto cleanup;}}/* Do the encode, writing to the given file. /if (OSSL_ENCODER_to_fp(ectx, f) 0) {fprintf(stderr, OSSL_ENCODER_to_fp() failed\n);goto cleanup;}ret 1; cleanup:OSSL_ENCODER_CTX_free(ectx);return ret; }int main(int argc, char** argv) {int ret EXIT_FAILURE;OSSL_LIB_CTX _ossl_lib_ctx NULL;EVP_PKEY* _evp_pkey NULL;const char* passphrase_in NULL, * passphrase_out NULL;/* usage: rsa_encode passphrase-in passphrase-out /if (argc 1 argv[1][0])passphrase_in argv[1];if (argc 2 argv[2][0])passphrase_out argv[2];/ Decode PEM key from stdin and then PEM encode it to stdout. */_evp_pkey load_key(_ossl_lib_ctx, stdin, passphrase_in);if (_evp_pkey NULL) {fprintf(stderr, Failed to decode key\n);goto cleanup;}if (store_key(_evp_pkey, stdout, passphrase_out) 0) {fprintf(stderr, Failed to encode key\n);goto cleanup;}ret EXIT_SUCCESS; cleanup:EVP_PKEY_free(_evp_pkey);OSSL_LIB_CTX_free(_ossl_lib_ctx);return ret; } END