国密 GM/T 系列（SM2、SM3、SM4）纯 JavaScript 实现
最编程
2024-07-10 15:39:04
...
const { SM4 } = require('gm-crypto')
const key = '0123456789abcdeffedcba9876543210' // Any string of 32 hexadecimal digits
const originalData = 'SM4 国标对称加密'
/**
* Block cipher modes:
* - ECB: electronic codebook
* - CBC: cipher block chaining
*/
let encryptedData, decryptedData
// ECB
encryptedData = SM4.encrypt(originalData, key, {
inputEncoding: 'utf8',
outputEncoding: 'base64'
})
decryptedData = SM4.decrypt(encryptedData, key, {
inputEncoding: 'base64',
outputEncoding: 'utf8'
})
// CBC
const iv = '0123456789abcdeffedcba9876543210' // Initialization vector(any string of 32 hexadecimal digits)
encryptedData = SM4.encrypt(originalData, key, {
iv,
mode: SM2.constants.CBC,
inputEncoding: 'utf8',
outputEncoding: 'hex'
})
decryptedData = SM4.decrypt(encryptedData, key, {
iv,
mode: SM2.constants.CBC,
inputEncoding: 'hex',
outputEncoding: 'utf8'
})