OpenSSL在Linux上如何进行密码学算法选择

<code># 利用AES-256-CBC加密文档
openssl enc -aes-256-cbc -salt -in plaintext.txt -out encrypted.bin
<h1>解码文档</h1><p>openssl enc -d -aes-256-cbc -in encrypted.bin -out decrypted.txt</code>

<code># 创建RSA密钥对
openssl genpkey -algorithm RSA -out rsa_key.pem -pkeyopt rsa_keygen_bits:2048</p><h1>以公钥加密文档</h1><p>openssl pkeyutl -encrypt -pubin -inkey public.pem -in plaintext.txt -out encrypted.bin</p>
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                <h1>用私钥解码文档</h1><p>openssl pkeyutl -decrypt -inkey private.pem -in encrypted.bin -out decrypted.txt</code>

<code># 计算文档的SHA-256散列值
openssl dgst -sha256 plaintext.txt</p><h1>运用RSA私钥为信息签名</h1><p>openssl dgst -sha256 -sign private.pem -out signature.bin message.txt</p><h1>核验签名</h1><p>openssl dgst -sha256 -verify public.pem -signature signature.bin message.txt</code>

<code>[default]
ssl_version = TLSv1.2
cipher_string = HIGH:!aNULL:!MD5</code>