crypto

你可以在JS作用域内使用crypto全局变量，它提供了一些加密相关的方法；

rsaEncrypt(data string, pubKey string, outputType string) string
rsaDecrypt(data string, priKey string, inputType string) string

easyEncrypt(easyType, plainText, key, iv string) string
easyDecrypt(easyType, cipherText, key, iv string) string

rc4(data, key string) string

RSA加解密

RSA加解密使用

rsaEncrypt(data string, pubKey string, outputType string) string
rsaDecrypt(data string, priKey string, inputType string) string

两个方法；

其中outputType和inputType可以是base64或hex

顾名思义，inputType是指解密时输入的数据形式，outputType是指加密后输出的数据形式；

rsa加密例子

  var pubKey=`-----BEGIN PUBLIC KEY-----
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCNdPxoU6o/2CtgK4/Ik/vNrwZO
/CeFPraklTYVYdi2P9MUjKGsBc1bDV1fMsbYsMjke2HcWG7amfPJiK/e5Aufx3eq
WgP4goeklnbx3e95qsyvgPoSJFto/JBlswVfdmESl0HoW+kThtLm01kLxR7PThwV
KcyFESasDVgEIUFNowIDAQAB
-----END PUBLIC KEY-----`
  
var encodedBase64 = crypto.rsaEncrypt('i love hhp',pubKey,'base64')
log.log(encodedBase64)
// NMeaBcB29/R3UTpT0nwd2HinD8h2qfUxfX3OJt5KwBkbC2ds0BkLSYlC6f553QTMD8ALsx3S87Bf2JXEHJFOPA/oMrDM/oncFJ3Rfvod9yoPqho/gPc8gA69oCspvDYcibXewtcd1LRiiLBlZ2WwrxsPjJjfphbiMSYLhdGgJCg=
var encodedHex = crypto.rsaEncrypt('i love hhp',pubKey,'hex')
log.log(encodedHex)
// 4e748259e3ce914f345ea7e59387656b08fd8280a65d1bee78b74ab8b17eb214ca8a486667fc4c862e25c58021603014717db95c6e8abf6192ee6b10c720437dc4759c9ba34ad770473828f7d696e232220894f1fb28921cec11d0a154ed48e562910e6abd1c6e2bc6fd671e447c353a22590ea8aed4a51e5f6d22c65e9114b1

rsa解密例子

  var priKey = `-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----`

var decodedBase64 = crypto.rsaDecrypt('NMeaBcB29/R3UTpT0nwd2HinD8h2qfUxfX3OJt5KwBkbC2ds0BkLSYlC6f553QTMD8ALsx3S87Bf2JXEHJFOPA/oMrDM/oncFJ3Rfvod9yoPqho/gPc8gA69oCspvDYcibXewtcd1LRiiLBlZ2WwrxsPjJjfphbiMSYLhdGgJCg=',priKey,'base64')
log.log(decodedBase64) // i love hhp

var decodedHex = crypto.rsaDecrypt('4e748259e3ce914f345ea7e59387656b08fd8280a65d1bee78b74ab8b17eb214ca8a486667fc4c862e25c58021603014717db95c6e8abf6192ee6b10c720437dc4759c9ba34ad770473828f7d696e232220894f1fb28921cec11d0a154ed48e562910e6abd1c6e2bc6fd671e447c353a22590ea8aed4a51e5f6d22c65e9114b1', priKey,'hex')
log.log(decodedHex)// i love hhp

AES/DES加解密

AES/DES加解密使用

easyEncrypt(easyType, plainText, key, iv string) string
easyDecrypt(easyType, cipherText, key, iv string) string

参数 easyType 应该为以下格式:cryptoType/mode/padding 或 cryptoType/mode/padding/transcode

例如：

easyEncrypt("des/CFB/Pkcs7/Base64", plaintext, key, iv)
easyDecrypt("des/CFB/Pkcs7/Base64", ciphertext, key, iv)

easyEncrypt("aes/CTR/Pkcs7", plaintext, key, iv)
easyDecrypt("aes/CTR/Pkcs7", ciphertext, key, iv)

easyEncrypt("3des/ECB/Pkcs5/Hex", plaintext, key, iv)
easyDecrypt("3des/ECB/Pkcs5/Hex", ciphertext, key, iv)

aes加解密使用和上面rsa的举例基本一致，这里就不赘述了；