2020年9月20日13:04:47
为什么需要加密解密算法？
数据加密的基本过程就是对原来为明文的文件或数据按某种算法进行处理，使其成为不可读的一段代码为“密文”，
使其只能在输入相应的密钥之后才能显示出原容，通过这样的途径来达到保护数据不被非法人窃取、阅读的目的。
该过程的逆过程为解密，即将该编码信息转化为其原来数据的过程。
比如api接口，数据传输，用户密码加密等、
php常用算法
环境 php 7.2.9
php的官方的加密解密扩展
https://www.php.net/manual/zh/refs.crypto.php
$p = 'rasmuslerdorf'; p(md5($p)); // $hash = password_hash($p, PASSWORD_DEFAULT); $hash = password_hash($p, PASSWORD_BCRYPT); p($hash); // $options = [ // 'cost' => 12, // ]; // echo password_hash($p, PASSWORD_BCRYPT, $options); if (password_verify($p, $hash)) { echo 'Password is ok!'; } else { echo 'Invalid password.'; } p(hash_algos()); $bytes = random_bytes(5); p(bin2hex($bytes)); p(random_int(100, 999));
上面是几个比较常用的关于密码的加算法
如果你需要更多强大的请查看
https://www.php.net/manual/zh/function.openssl-encrypt.php
php基本把现存所有的openssl加密算法全部移植过来了，真的很不错
$ciphers = openssl_get_cipher_methods(); $ciphers_and_aliases = openssl_get_cipher_methods(true); $cipher_aliases = array_diff($ciphers_and_aliases, $ciphers); p($ciphers); p($ciphers_and_aliases); p($cipher_aliases);
Array
(
[0] => AES-128-CBC
[1] => AES-128-CBC-HMAC-SHA1
[2] => AES-128-CBC-HMAC-SHA256
[3] => AES-128-CFB
[4] => AES-128-CFB1
[5] => AES-128-CFB8
[6] => AES-128-CTR
[7] => AES-128-ECB
[8] => AES-128-OCB
[9] => AES-128-OFB
[10] => AES-128-XTS
[11] => AES-192-CBC
[12] => AES-192-CFB
[13] => AES-192-CFB1
[14] => AES-192-CFB8
[15] => AES-192-CTR
[16] => AES-192-ECB
[17] => AES-192-OCB
[18] => AES-192-OFB
[19] => AES-256-CBC
[20] => AES-256-CBC-HMAC-SHA1
[21] => AES-256-CBC-HMAC-SHA256
[22] => AES-256-CFB
[23] => AES-256-CFB1
[24] => AES-256-CFB8
[25] => AES-256-CTR
[26] => AES-256-ECB
[27] => AES-256-OCB
[28] => AES-256-OFB
[29] => AES-256-XTS
[30] => BF-CBC
[31] => BF-CFB
[32] => BF-ECB
[33] => BF-OFB
[34] => CAMELLIA-128-CBC
[35] => CAMELLIA-128-CFB
[36] => CAMELLIA-128-CFB1
[37] => CAMELLIA-128-CFB8
[38] => CAMELLIA-128-CTR
[39] => CAMELLIA-128-ECB
[40] => CAMELLIA-128-OFB
[41] => CAMELLIA-192-CBC
[42] => CAMELLIA-192-CFB
[43] => CAMELLIA-192-CFB1
[44] => CAMELLIA-192-CFB8
[45] => CAMELLIA-192-CTR
[46] => CAMELLIA-192-ECB
[47] => CAMELLIA-192-OFB
[48] => CAMELLIA-256-CBC
[49] => CAMELLIA-256-CFB
[50] => CAMELLIA-256-CFB1
[51] => CAMELLIA-256-CFB8
[52] => CAMELLIA-256-CTR
[53] => CAMELLIA-256-ECB
[54] => CAMELLIA-256-OFB
[55] => CAST5-CBC
[56] => CAST5-CFB
[57] => CAST5-ECB
[58] => CAST5-OFB
[59] => ChaCha20
[60] => ChaCha20-Poly1305
[61] => DES-CBC
[62] => DES-CFB
[63] => DES-CFB1
[64] => DES-CFB8
[65] => DES-ECB
[66] => DES-EDE
[67] => DES-EDE-CBC
[68] => DES-EDE-CFB
[69] => DES-EDE-OFB
[70] => DES-EDE3
[71] => DES-EDE3-CBC
[72] => DES-EDE3-CFB
[73] => DES-EDE3-CFB1
[74] => DES-EDE3-CFB8
[75] => DES-EDE3-OFB
[76] => DES-OFB
[77] => DESX-CBC
[78] => IDEA-CBC
[79] => IDEA-CFB
[80] => IDEA-ECB
[81] => IDEA-OFB
[82] => RC2-40-CBC
[83] => RC2-64-CBC
[84] => RC2-CBC
[85] => RC2-CFB
[86] => RC2-ECB
[87] => RC2-OFB
[88] => RC4
[89] => RC4-40
[90] => RC4-HMAC-MD5
[91] => SEED-CBC
[92] => SEED-CFB
[93] => SEED-ECB
[94] => SEED-OFB
[95] => aes-128-cbc
[96] => aes-128-cbc-hmac-sha1
[97] => aes-128-cbc-hmac-sha256
[98] => aes-128-ccm
[99] => aes-128-cfb
[100] => aes-128-cfb1
[101] => aes-128-cfb8
[102] => aes-128-ctr
[103] => aes-128-ecb
[104] => aes-128-gcm
[105] => aes-128-ocb
[106] => aes-128-ofb
[107] => aes-128-xts
[108] => aes-192-cbc
[109] => aes-192-ccm
[110] => aes-192-cfb
[111] => aes-192-cfb1
[112] => aes-192-cfb8
[113] => aes-192-ctr
[114] => aes-192-ecb
[115] => aes-192-gcm
[116] => aes-192-ocb
[117] => aes-192-ofb
[118] => aes-256-cbc
[119] => aes-256-cbc-hmac-sha1
[120] => aes-256-cbc-hmac-sha256
[121] => aes-256-ccm
[122] => aes-256-cfb
[123] => aes-256-cfb1
[124] => aes-256-cfb8
[125] => aes-256-ctr
[126] => aes-256-ecb
[127] => aes-256-gcm
[128] => aes-256-ocb
[129] => aes-256-ofb
[130] => aes-256-xts
[131] => bf-cbc
[132] => bf-cfb
[133] => bf-ecb
[134] => bf-ofb
[135] => camellia-128-cbc
[136] => camellia-128-cfb
[137] => camellia-128-cfb1
[138] => camellia-128-cfb8
[139] => camellia-128-ctr
[140] => camellia-128-ecb
[141] => camellia-128-ofb
[142] => camellia-192-cbc
[143] => camellia-192-cfb
[144] => camellia-192-cfb1
[145] => camellia-192-cfb8
[146] => camellia-192-ctr
[147] => camellia-192-ecb
[148] => camellia-192-ofb
[149] => camellia-256-cbc
[150] => camellia-256-cfb
[151] => camellia-256-cfb1
[152] => camellia-256-cfb8
[153] => camellia-256-ctr
[154] => camellia-256-ecb
[155] => camellia-256-ofb
[156] => cast5-cbc
[157] => cast5-cfb
[158] => cast5-ecb
[159] => cast5-ofb
[160] => chacha20
[161] => chacha20-poly1305
[162] => des-cbc
[163] => des-cfb
[164] => des-cfb1
[165] => des-cfb8
[166] => des-ecb
[167] => des-ede
[168] => des-ede-cbc
[169] => des-ede-cfb
[170] => des-ede-ofb
[171] => des-ede3
[172] => des-ede3-cbc
[173] => des-ede3-cfb
[174] => des-ede3-cfb1
[175] => des-ede3-cfb8
[176] => des-ede3-ofb
[177] => des-ofb
[178] => desx-cbc
[179] => id-aes128-CCM
[180] => id-aes128-GCM
[181] => id-aes128-wrap
[182] => id-aes128-wrap-pad
[183] => id-aes192-CCM
[184] => id-aes192-GCM
[185] => id-aes192-wrap
[186] => id-aes192-wrap-pad
[187] => id-aes256-CCM
[188] => id-aes256-GCM
[189] => id-aes256-wrap
[190] => id-aes256-wrap-pad
[191] => id-smime-alg-CMS3DESwrap
[192] => idea-cbc
[193] => idea-cfb
[194] => idea-ecb
[195] => idea-ofb
[196] => rc2-40-cbc
[197] => rc2-64-cbc
[198] => rc2-cbc
[199] => rc2-cfb
[200] => rc2-ecb
[201] => rc2-ofb
[202] => rc4
[203] => rc4-40
[204] => rc4-hmac-md5
[205] => seed-cbc
[206] => seed-cfb
[207] => seed-ecb
[208] => seed-ofb
)
c/cpp的加密解密算法库
https://github.com/openssl/openssl/tree/master/crypto
可以参考对照下基本全部移植过来了
https://www.feistyduck.com/library/openssl-cookbook/online/ch-openssl.html#
英文官方OpenSSL的说明pdf，有时间翻译下
还一个就是非常知名的Crypto++
官网 https://www.cryptopp.com/
https://github.com/weidai11/cryptopp
使用参考博客
https://blog.csdn.net/Lunar_Queen/column/info/25854
如果你想学习算法编写，以上 openssl和cryptopp是非常好的学习资料，整个git库挺大的
加速下载方法，在这里推荐一下，下面整个网站，对于网络环境比较烂的同学是非常不错的工具
https://gitclone.com/
git clone https://gitclone.com/github.com/weidai11/cryptopp git clone https://gitclone.com/github.com/openssl/openssl