89 lines
2.5 KiB
JavaScript
89 lines
2.5 KiB
JavaScript
const crypto = require('crypto')
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const GCM_MODE = ['aes-128-gcm', 'aes-192-gcm', 'aes-256-gcm']
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module.exports = {
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origin: crypto,
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hash(mode, data, outEncode) {
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let sum = crypto.createHash(mode)
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let isBuffer = Buffer.isBuffer(data)
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sum.update(data, isBuffer ? 'binary' : 'utf8')
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return sum.digest(outEncode || 'hex')
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},
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hmac(mode, data, key, outEncode) {
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key = key || ''
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let sum = crypto.createHmac(mode, key)
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let isBuffer = Buffer.isBuffer(data)
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sum.update(data, isBuffer ? 'binary' : 'utf8')
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return sum.digest(outEncode || 'hex')
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},
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cipher(mode, data, key, inEncode, outEncode) {
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key = key || ''
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let isBuffer = Buffer.isBuffer(data)
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inEncode = isBuffer ? 'binary' : inEncode || 'utf8'
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outEncode = outEncode || 'base64'
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let cc = crypto.createCipher(mode, key)
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let enStr = cc.update(data, inEncode, outEncode)
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enStr += cc.final(outEncode)
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if (GCM_MODE.indexOf(mode) > -1) {
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let authTag = cc.getAuthTag()
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return { enStr: enStr, authTag: authTag }
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}
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return enStr
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},
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decipher(mode, data, key, tag, inEncode, outEncode) {
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key = key || ''
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let isBuffer = Buffer.isBuffer(data)
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inEncode = isBuffer ? 'binary' : inEncode || 'base64'
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outEncode = outEncode || 'utf8'
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let cd = crypto.createDecipher(mode, key)
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if (GCM_MODE.indexOf(mode) > -1) {
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cd.setAuthTag(tag)
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}
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let deStr = cd.update(data, inEncode, outEncode)
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deStr += cd.final(outEncode)
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return deStr
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},
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cipheriv(mode, data, key, iv, inEncode, outEncode) {
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key = key || '0000000000000000'
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iv = iv || ''
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let isBuffer = Buffer.isBuffer(data)
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inEncode = isBuffer ? 'binary' : inEncode || 'utf8'
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outEncode = outEncode || 'base64'
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let cciv = crypto.createCipheriv(mode, key, iv)
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let enStr = cciv.update(data, inEncode, outEncode)
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enStr += cciv.final(outEncode)
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if (GCM_MODE.indexOf(mode) > -1) {
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let authTag = cciv.getAuthTag()
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return { enStr: enStr, authTag: authTag }
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}
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return enStr
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},
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decipheriv(mode, data, key, iv, tag, inEncode, outEncode) {
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key = key || '0000000000000000'
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iv = iv || ''
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let isBuffer = Buffer.isBuffer(data)
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inEncode = isBuffer ? 'binary' : inEncode || 'base64'
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outEncode = outEncode || 'utf8'
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let dcpiv = crypto.createDecipheriv(mode, key, iv)
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if (GCM_MODE.indexOf(mode) > -1) {
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dcpiv.setAuthTag(tag)
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}
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let deStr = dcpiv.update(data, inEncode, outEncode)
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deStr += dcpiv.final(outEncode)
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return deStr
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}
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}
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