一、使用场景
在使用前后端分离的框架中常常会进行传输数据相互加密解密以确保数据的安全性，如web Api返回加密数据客户端或web端进行解密，或者客户端或web端进行加密提交数据服务端解密数据等等。
二、Javascript源码
/*
CryptoJS v3.1.2
code.google.com/p/crypto-js
(c) 2009-2013 by Jeff Mott. All rights reserved.
code.google.com/p/crypto- js/wiki/License
*/
var CryptoJS = CryptoJS ||
function (u, p) {
var d = {},
l = d.lib = {},
s = function () { },
t = l.Base = {
extend: function (a) {
s.prototype = this;
var c = new s;
a && c.mixIn(a);
c.hasOwnProperty("init") || (c.init = function () {
c.$super.init.apply(this, arguments)
});
c.init.prototype = c;
c.$super = this;
return c
},
create: function () {
var a = this.extend();
a.init.apply(a, arguments);
return a
},
init: function () { },
mixIn: function (a) {
for (var c in a) a.hasOwnProperty(c) && (this[c] = a[c]);
a.hasOwnProperty("toString") && (this.toString = a.toString)
},
clone: function () {
return this.init.prototype.extend(this)
}
},
r = l.WordArray = t.extend({
init: function (a, c) {
a = this.words = a || [];
this.sigBytes = c != p ? c : 4 * a.length
},
toString: function (a) {
return (a || v).stringify(this)
},
concat: function (a) {
var c = this.words,
e = a.words,
j = this.sigBytes;
a = a.sigBytes;
this.clamp();
if (j % 4) for (var k = 0; k < a; k++) c[j + k >>> 2] |= (e[k >>> 2] >>> 24 - 8 * (k % 4) & 255) << 24 - 8 * ((j + k) % 4);
else if (65535 < e.length) for (k = 0; k < a; k += 4) c[j + k >>> 2] = e[k >>> 2];
else c.push.apply(c, e);
this.sigBytes += a;
return this
},
clamp: function () {
var a = this.words,
c = this.sigBytes;
a[c >>> 2] &= 4294967295 << 32 - 8 * (c % 4);
a.length = u.ceil(c / 4)
},
clone: function () {
var a = t.clone.call(this);
a.words = this.words.slice(0);
return a
},
random: function (a) {
for (var c = [], e = 0; e < a; e += 4) c.push(4294967296 * u.random() | 0);
return new r.init(c, a)
}
}),
w = d.enc = {},
v = w.Hex = {
stringify: function (a) {
var c = a.words;
a = a.sigBytes;
for (var e = [], j = 0; j < a; j++) {
var k = c[j >>> 2] >>> 24 - 8 * (j % 4) & 255;
e.push((k >>> 4).toString(16));
e.push((k & 15).toString(16))
}
return e.join("")
},
parse: function (a) {
for (var c = a.length,
e = [], j = 0; j < c; j += 2) e[j >>> 3] |= parseInt(a.substr(j, 2), 16) << 24 - 4 * (j % 8);
return new r.init(e, c / 2)
}
},
b = w.Latin1 = {
stringify: function (a) {
var c = a.words;
a = a.sigBytes;
for (var e = [], j = 0; j < a; j++) e.push(String.fromCharCode(c[j >>> 2] >>> 24 - 8 * (j % 4) & 255));
return e.join("")
},
parse: function (a) {
for (var c = a.length,
e = [], j = 0; j < c; j++) e[j >>> 2] |= (a.charCodeAt(j) & 255) << 24 - 8 * (j % 4);
return new r.init(e, c)
}
},
x = w.Utf8 = {
stringify: function (a) {
try {
return decodeURIComponent(escape(b.stringify(a)))
} catch (c) {
throw Error("Malformed UTF-8 data");
}
},
parse: function (a) {
return b.parse(unescape(encodeURIComponent(a)))
}
},
q = l.BufferedBlockAlgorithm = t.extend({
reset: function () {
this._data = new r.init;
this._nDataBytes = 0
},
_append: function (a) {
"string" == typeof a && (a = x.parse(a));
this._data.concat(a);
this._nDataBytes += a.sigBytes
},
_process: function (a) {
var c = this._data,
e = c.words,
j = c.sigBytes,
k = this.blockSize,
b = j / (4 * k),
b = a ? u.ceil(b) : u.max((b | 0) - this._minBufferSize, 0);
a = b * k;
j = u.min(4 * a, j);
if (a) {
for (var q = 0; q < a; q += k) this._doProcessBlock(e, q);
q = e.splice(0, a);
c.sigBytes -= j
}
return new r.init(q, j)
},
clone: function () {
var a = t.clone.call(this);
a._data = this._data.clone();
return a
},
_minBufferSize: 0
});
l.Hasher = q.extend({
cfg: t.extend(),
init: function (a) {
this.cfg = this.cfg.extend(a);
this.reset()
},
reset: function () {
q.reset.call(this);
this._doReset()
},
update: function (a) {
this._append(a);
this._process();
return this
},
finalize: function (a) {
a && this._append(a);
return this._doFinalize()
},
blockSize: 16,
_createHelper: function (a) {
return function (b, e) {
return (new a.init(e)).finalize(b)
}
},
_createHmacHelper: function (a) {
return function (b, e) {
return (new n.HMAC.init(a, e)).finalize(b)
}
}
});
var n = d.algo = {};
return d
}(Math); (function () {
var u = CryptoJS,
p = u.lib.WordArray;
u.enc.Base64 = {
stringify: function (d) {
var l = d.words,
p = d.sigBytes,
t = this._map;
d.clamp();
d = [];
for (var r = 0; r < p; r += 3) for (var w = (l[r >>> 2] >>> 24 - 8 * (r % 4) & 255) << 16 | (l[r + 1 >>> 2] >>> 24 - 8 * ((r + 1) % 4) & 255) << 8 | l[r + 2 >>> 2] >>> 24 - 8 * ((r + 2) % 4) & 255, v = 0; 4 > v && r + 0.75 * v < p; v++) d.push(t.charAt(w >>> 6 * (3 - v) & 63));
if (l = t.charAt(64)) for (; d.length % 4;) d.push(l);
return d.join("")
},
parse: function (d) {
var l = d.length,
s = this._map,
t = s.charAt(64);
t && (t = d.indexOf(t), -1 != t && (l = t));
for (var t = [], r = 0, w = 0; w < l; w++) if (w % 4) {
var v = s.indexOf(d.charAt(w - 1)) << 2 * (w % 4),
b = s.indexOf(d.charAt(w)) >>> 6 - 2 * (w % 4);
t[r >>> 2] |= (v | b) << 24 - 8 * (r % 4);
r++
}
return p.create(t, r)
},
_map: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="
}
})();
(function (u) {
function p(b, n, a, c, e, j, k) {
b = b + (n & a | ~n & c) + e + k;
return (b << j | b >>> 32 - j) + n
}
function d(b, n, a, c, e, j, k) {
b = b + (n & c | a & ~c) + e + k;
return (b << j | b >>> 32 - j) + n
}
function l(b, n, a, c, e, j, k) {
b = b + (n ^ a ^ c) + e + k;
return (b << j | b >>> 32 - j) + n
}
function s(b, n, a, c, e, j, k) {
b = b + (a ^ (n | ~c)) + e + k;
return (b << j | b >>> 32 - j) + n
}
for (var t = CryptoJS,
r = t.lib,
w = r.WordArray,
v = r.Hasher,
r = t.algo,
b = [], x = 0; 64 > x; x++) b[x] = 4294967296 * u.abs(u.sin(x + 1)) | 0;
r = r.MD5 = v.extend({
_doReset: function () {
this._hash = new w.init([1732584193, 4023233417, 2562383102, 271733878])
},
_doProcessBlock: function (q, n) {
for (var a = 0; 16 > a; a++) {
var c = n + a,
e = q[c];
q[c] = (e << 8 | e >>> 24) & 16711935 | (e << 24 | e >>> 8) & 4278255360
}
var a = this._hash.words,
c = q[n + 0],
e = q[n + 1],
j = q[n + 2],
k = q[n + 3],
z = q[n + 4],
r = q[n + 5],
t = q[n + 6],
w = q[n + 7],
v = q[n + 8],
A = q[n + 9],
B = q[n + 10],
C = q[n + 11],
u = q[n + 12],
D = q[n + 13],
E = q[n + 14],
x = q[n + 15],
f = a[0],
m = a[1],
g = a[2],
h = a[3],
f = p(f, m, g, h, c, 7, b[0]),
h = p(h, f, m, g, e, 12, b[1]),
g = p(g, h, f, m, j, 17, b[2]),
m = p(m, g, h, f, k, 22, b[3]),
f = p(f, m, g, h, z, 7, b[4]),
h = p(h, f, m, g, r, 12, b[5]),
g = p(g, h, f, m, t, 17, b[6]),
m = p(m, g, h, f, w, 22, b[7]),
f = p(f, m, g, h, v, 7, b[8]),
h = p(h, f, m, g, A, 12, b[9]),
g = p(g, h, f, m, B, 17, b[10]),
m = p(m, g, h, f, C, 22, b[11]),
f = p(f, m, g, h, u, 7, b[12]),
h = p(h, f, m, g, D, 12, b[13]),
g = p(g, h, f, m, E, 17, b[14]),
m = p(m, g, h, f, x, 22, b[15]),
f = d(f, m, g, h, e, 5, b[16]),
h = d(h, f, m, g, t, 9, b[17]),
g = d(g, h, f, m, C, 14, b[18]),
m = d(m, g, h, f, c, 20, b[19]),
f = d(f, m, g, h, r, 5, b[20]),
h = d(h, f, m, g, B, 9, b[21]),
g = d(g, h, f, m, x, 14, b[22]),
m = d(m, g, h, f, z, 20, b[23]),
f = d(f, m, g, h, A, 5, b[24]),
h = d(h, f, m, g, E, 9, b[25]),
g = d(g, h, f, m, k, 14, b[26]),
m = d(m, g, h, f, v, 20, b[27]),
f = d(f, m, g, h, D, 5, b[28]),
h = d(h, f, m, g, j, 9, b[29]),
g = d(g, h, f, m, w, 14, b[30]),
m = d(m, g, h, f, u, 20, b[31]),
f = l(f, m, g, h, r, 4, b[32]),
h = l(h, f, m, g, v, 11, b[33]),
g = l(g, h, f, m, C, 16, b[34]),
m = l(m, g, h, f, E, 23, b[35]),
f = l(f, m, g, h, e, 4, b[36]),
h = l(h, f, m, g, z, 11, b[37]),
g = l(g, h, f, m, w, 16, b[38]),
m = l(m, g, h, f, B, 23, b[39]),
f = l(f, m, g, h, D, 4, b[40]),
h = l(h, f, m, g, c, 11, b[41]),
g = l(g, h, f, m, k, 16, b[42]),
m = l(m, g, h, f, t, 23, b[43]),
f = l(f, m, g, h, A, 4, b[44]),
h = l(h, f, m, g, u, 11, b[45]),
g = l(g, h, f, m, x, 16, b[46]),
m = l(m, g, h, f, j, 23, b[47]),
f = s(f, m, g, h, c, 6, b[48]),
h = s(h, f, m, g, w, 10, b[49]),
g = s(g, h, f, m, E, 15, b[50]),
m = s(m, g, h, f, r, 21, b[51]),
f = s(f, m, g, h, u, 6, b[52]),
h = s(h, f, m, g, k, 10, b[53]),
g = s(g, h, f, m, B, 15, b[54]),
m = s(m, g, h, f, e, 21, b[55]),
f = s(f, m, g, h, v, 6, b[56]),
h = s(h, f, m, g, x, 10, b[57]),
g = s(g, h, f, m, t, 15, b[58]),
m = s(m, g, h, f, D, 21, b[59]),
f = s(f, m, g, h, z, 6, b[60]),
h = s(h, f, m, g, C, 10, b[61]),
g = s(g, h, f, m, j, 15, b[62]),
m = s(m, g, h, f, A, 21, b[63]);
a[0] = a[0] + f | 0;
a[1] = a[1] + m | 0;
a[2] = a[2] + g | 0;
a[3] = a[3] + h | 0
},
_doFinalize: function () {
var b = this._data,
n = b.words,
a = 8 * this._nDataBytes,
c = 8 * b.sigBytes;
n[c >>> 5] |= 128 << 24 - c % 32;
var e = u.floor(a / 4294967296);
n[(c + 64 >>> 9 << 4) + 15] = (e << 8 | e >>> 24) & 16711935 | (e << 24 | e >>> 8) & 4278255360;
n[(c + 64 >>> 9 << 4) + 14] = (a << 8 | a >>> 24) & 16711935 | (a << 24 | a >>> 8) & 4278255360;
b.sigBytes = 4 * (n.length + 1);
this._process();
b = this._hash;
n = b.words;
for (a = 0; 4 > a; a++) c = n[a],
n[a] = (c << 8 | c >>> 24) & 16711935 | (c << 24 | c >>> 8) & 4278255360;
return b
},
clone: function () {
var b = v.clone.call(this);
b._hash = this._hash.clone();
return b
}
});
t.MD5 = v._createHelper(r);
t.HmacMD5 = v._createHmacHelper(r)
})(Math); (function () {
var u = CryptoJS,
p = u.lib,
d = p.Base,
l = p.WordArray,
p = u.algo,
s = p.EvpKDF = d.extend({
cfg: d.extend({
keySize: 4,
hasher: p.MD5,
iterations: 1
}),
init: function (d) {
this.cfg = this.cfg.extend(d)
},
compute: function (d, r) {
for (var p = this.cfg,
s = p.hasher.create(), b = l.create(), u = b.words, q = p.keySize, p = p.iterations; u.length < q;) {
n && s.update(n);
var n = s.update(d).finalize(r);
s.reset();
for (var a = 1; a < p; a++) n = s.finalize(n),
s.reset();
b.concat(n)
}
b.sigBytes = 4 * q;
return b
}
});
u.EvpKDF = function (d, l, p) {
return s.create(p).compute(d, l)
}
})();
CryptoJS.lib.Cipher ||
function (u) {
var p = CryptoJS,
d = p.lib,
l = d.Base,
s = d.WordArray,
t = d.BufferedBlockAlgorithm,
r = p.enc.Base64,
w = p.algo.EvpKDF,
v = d.Cipher = t.extend({
cfg: l.extend(),
createEncryptor: function (e, a) {
return this.create(this._ENC_XFORM_MODE, e, a)
},
createDecryptor: function (e, a) {
return this.create(this._DEC_XFORM_MODE, e, a)
},
init: function (e, a, b) {
this.cfg = this.cfg.extend(b);
this._xformMode = e;
this._key = a;
this.reset()
},
reset: function () {
t.reset.call(this);
this._doReset()
},
process: function (e) {
this._append(e);
return this._process()
},
finalize: function (e) {
e && this._append(e);
return this._doFinalize()
},
keySize: 4,
ivSize: 4,
_ENC_XFORM_MODE: 1,
_DEC_XFORM_MODE: 2,
_createHelper: function (e) {
return {
encrypt: function (b, k, d) {
return ("string" == typeof k ? c : a).encrypt(e, b, k, d)
},
decrypt: function (b, k, d) {
return ("string" == typeof k ? c : a).decrypt(e, b, k, d)
}
}
}
});
d.StreamCipher = v.extend({
_doFinalize: function () {
return this._process(!0)
},
blockSize: 1
});
var b = p.mode = {},
x = function (e, a, b) {
var c = this._iv;
c ? this._iv = u : c = this._prevBlock;
for (var d = 0; d < b; d++) e[a + d] ^= c[d]
},
q = (d.BlockCipherMode = l.extend({
createEncryptor: function (e, a) {
return this.Encryptor.create(e, a)
},
createDecryptor: function (e, a) {
return this.Decryptor.create(e, a)
},
init: function (e, a) {
this._cipher = e;
this._iv = a
}
})).extend();
q.Encryptor = q.extend({
processBlock: function (e, a) {
var b = this._cipher,
c = b.blockSize;
x.call(this, e, a, c);
b.encryptBlock(e, a);
this._prevBlock = e.slice(a, a + c)
}
});
q.Decryptor = q.extend({
processBlock: function (e, a) {
var b = this._cipher,
c = b.blockSize,
d = e.slice(a, a + c);
b.decryptBlock(e, a);
x.call(this, e, a, c);
this._prevBlock = d
}
});
b = b.CBC = q;
q = (p.pad = {}).Pkcs7 = {
pad: function (a, b) {
for (var c = 4 * b,
c = c - a.sigBytes % c,
d = c << 24 | c << 16 | c << 8 | c,
l = [], n = 0; n < c; n += 4) l.push(d);
c = s.create(l, c);
a.concat(c)
},
unpad: function (a) {
a.sigBytes -= a.words[a.sigBytes - 1 >>> 2] & 255
}
};
d.BlockCipher = v.extend({
cfg: v.cfg.extend({
mode: b,
padding: q
}),
reset: function () {
v.reset.call(this);
var a = this.cfg,
b = a.iv,
a = a.mode;
if (this._xformMode == this._ENC_XFORM_MODE) var c = a.createEncryptor;
else c = a.createDecryptor,
this._minBufferSize = 1;
this._mode = c.call(a, this, b && b.words)
},
_doProcessBlock: function (a, b) {
this._mode.processBlock(a, b)
},
_doFinalize: function () {
var a = this.cfg.padding;
if (this._xformMode == this._ENC_XFORM_MODE) {
a.pad(this._data, this.blockSize);
var b = this._process(!0)
} else b = this._process(!0),
a.unpad(b);
return b
},
blockSize: 4
});
var n = d.CipherParams = l.extend({
init: function (a) {
this.mixIn(a)
},
toString: function (a) {
return (a || this.formatter).stringify(this)
}
}),
b = (p.format = {}).OpenSSL = {
stringify: function (a) {
var b = a.ciphertext;
a = a.salt;
return (a ? s.create([1398893684, 1701076831]).concat(a).concat(b) : b).toString(r)
},
parse: function (a) {
a = r.parse(a);
var b = a.words;
if (1398893684 == b[0] && 1701076831 == b[1]) {
var c = s.create(b.slice(2, 4));
b.splice(0, 4);
a.sigBytes -= 16
}
return n.create({
ciphertext: a,
salt: c
})
}
},
a = d.SerializableCipher = l.extend({
cfg: l.extend({
format: b
}),
encrypt: function (a, b, c, d) {
d = this.cfg.extend(d);
var l = a.createEncryptor(c, d);
b = l.finalize(b);
l = l.cfg;
return n.create({
ciphertext: b,
key: c,
iv: l.iv,
algorithm: a,
mode: l.mode,
padding: l.padding,
blockSize: a.blockSize,
formatter: d.format
})
},
decrypt: function (a, b, c, d) {
d = this.cfg.extend(d);
b = this._parse(b, d.format);
return a.createDecryptor(c, d).finalize(b.ciphertext)
},
_parse: function (a, b) {
return "string" == typeof a ? b.parse(a, this) : a
}
}),
p = (p.kdf = {}).OpenSSL = {
execute: function (a, b, c, d) {
d || (d = s.random(8));
a = w.create({
keySize: b + c
}).compute(a, d);
c = s.create(a.words.slice(b), 4 * c);
a.sigBytes = 4 * b;
return n.create({
key: a,
iv: c,
salt: d
})
}
},
c = d.PasswordBasedCipher = a.extend({
cfg: a.cfg.extend({
kdf: p
}),
encrypt: function (b, c, d, l) {
l = this.cfg.extend(l);
d = l.kdf.execute(d, b.keySize, b.ivSize);
l.iv = d.iv;
b = a.encrypt.call(this, b, c, d.key, l);
b.mixIn(d);
return b
},
decrypt: function (b, c, d, l) {
l = this.cfg.extend(l);
c = this._parse(c, l.format);
d = l.kdf.execute(d, b.keySize, b.ivSize, c.salt);
l.iv = d.iv;
return a.decrypt.call(this, b, c, d.key, l)
}
})
}(); (function () {
for (var u = CryptoJS,
p = u.lib.BlockCipher,
d = u.algo,
l = [], s = [], t = [], r = [], w = [], v = [], b = [], x = [], q = [], n = [], a = [], c = 0; 256 > c; c++) a[c] = 128 > c ? c << 1 : c << 1 ^ 283;
for (var e = 0,
j = 0,
c = 0; 256 > c; c++) {
var k = j ^ j << 1 ^ j << 2 ^ j << 3 ^ j << 4,
k = k >>> 8 ^ k & 255 ^ 99;
l[e] = k;
s[k] = e;
var z = a[e],
F = a[z],
G = a[F],
y = 257 * a[k] ^ 16843008 * k;
t[e] = y << 24 | y >>> 8;
r[e] = y << 16 | y >>> 16;
w[e] = y << 8 | y >>> 24;
v[e] = y;
y = 16843009 * G ^ 65537 * F ^ 257 * z ^ 16843008 * e;
b[k] = y << 24 | y >>> 8;
x[k] = y << 16 | y >>> 16;
q[k] = y << 8 | y >>> 24;
n[k] = y;
e ? (e = z ^ a[a[a[G ^ z]]], j ^= a[a[j]]) : e = j = 1
}
var H = [0, 1, 2, 4, 8, 16, 32, 64, 128, 27, 54],
d = d.AES = p.extend({
_doReset: function () {
for (var a = this._key,
c = a.words,
d = a.sigBytes / 4,
a = 4 * ((this._nRounds = d + 6) + 1), e = this._keySchedule = [], j = 0; j < a; j++) if (j < d) e[j] = c[j];
else {
var k = e[j - 1];
j % d ? 6 < d && 4 == j % d && (k = l[k >>> 24] << 24 | l[k >>> 16 & 255] << 16 | l[k >>> 8 & 255] << 8 | l[k & 255]) : (k = k << 8 | k >>> 24, k = l[k >>> 24] << 24 | l[k >>> 16 & 255] << 16 | l[k >>> 8 & 255] << 8 | l[k & 255], k ^= H[j / d | 0] << 24);
e[j] = e[j - d] ^ k
}
c = this._invKeySchedule = [];
for (d = 0; d < a; d++) j = a - d,
k = d % 4 ? e[j] : e[j - 4],
c[d] = 4 > d || 4 >= j ? k : b[l[k >>> 24]] ^ x[l[k >>> 16 & 255]] ^ q[l[k >>> 8 & 255]] ^ n[l[k & 255]]
},
encryptBlock: function (a, b) {
this._doCryptBlock(a, b, this._keySchedule, t, r, w, v, l)
},
decryptBlock: function (a, c) {
var d = a[c + 1];
a[c + 1] = a[c + 3];
a[c + 3] = d;
this._doCryptBlock(a, c, this._invKeySchedule, b, x, q, n, s);
d = a[c + 1];
a[c + 1] = a[c + 3];
a[c + 3] = d
},
_doCryptBlock: function (a, b, c, d, e, j, l, f) {
for (var m = this._nRounds,
g = a[b] ^ c[0], h = a[b + 1] ^ c[1], k = a[b + 2] ^ c[2], n = a[b + 3] ^ c[3], p = 4, r = 1; r < m; r++) var q = d[g >>> 24] ^ e[h >>> 16 & 255] ^ j[k >>> 8 & 255] ^ l[n & 255] ^ c[p++],
s = d[h >>> 24] ^ e[k >>> 16 & 255] ^ j[n >>> 8 & 255] ^ l[g & 255] ^ c[p++],
t = d[k >>> 24] ^ e[n >>> 16 & 255] ^ j[g >>> 8 & 255] ^ l[h & 255] ^ c[p++],
n = d[n >>> 24] ^ e[g >>> 16 & 255] ^ j[h >>> 8 & 255] ^ l[k & 255] ^ c[p++],
g = q,
h = s,
k = t;
q = (f[g >>> 24] << 24 | f[h >>> 16 & 255] << 16 | f[k >>> 8 & 255] << 8 | f[n & 255]) ^ c[p++];
s = (f[h >>> 24] << 24 | f[k >>> 16 & 255] << 16 | f[n >>> 8 & 255] << 8 | f[g & 255]) ^ c[p++];
t = (f[k >>> 24] << 24 | f[n >>> 16 & 255] << 16 | f[g >>> 8 & 255] << 8 | f[h & 255]) ^ c[p++];
n = (f[n >>> 24] << 24 | f[g >>> 16 & 255] << 16 | f[h >>> 8 & 255] << 8 | f[k & 255]) ^ c[p++];
a[b] = q;
a[b + 1] = s;
a[b + 2] = t;
a[b + 3] = n
},
keySize: 8
});
u.AES = p._createHelper(d)
})();
CryptoJS.pad.ZeroPadding = {
pad: function (data, blockSize) {
// Shortcut
var blockSizeBytes = blockSize * 4; // Pad
data.clamp();
data.sigBytes += blockSizeBytes - ((data.sigBytes % blockSizeBytes) || blockSizeBytes);
}, unpad: function (data) {
// Shortcut
var dataWords = data.words; // Unpad
var i = data.sigBytes - 1;
while (!((dataWords[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff)) {
i--;
}
data.sigBytes = i + 1;
}
}; var AES = {};
(function ($) {
var key = CryptoJS.enc.Utf8.parse("aaaabbbbccccddddeeeeffffgggghhhh"); //密码
var iv = CryptoJS.enc.Utf8.parse('1234567812345678');
$.encrypt = function (word) {
var srcs = CryptoJS.enc.Utf8.parse(word);
var encrypted = CryptoJS.AES.encrypt(srcs, key, {
iv: iv, mode: CryptoJS.mode.CBC, padding:
CryptoJS.pad.ZeroPadding
});
return encrypted;
}
$.decrypt = function (word) { var decrypted = CryptoJS.AES.decrypt(word, key, {
iv: iv, mode: CryptoJS.mode.CBC, padding:
CryptoJS.pad.ZeroPadding
});
return decrypted.toString(CryptoJS.enc.Utf8);
}
})(AES)
三、c#代码
using System;
using System.Security.Cryptography;
using System.Text; namespace EmsBigDataPlateForme.Core.Util
{
public class AESEncript
{
/// <summary>
/// AES加密
/// </summary>
/// <param name="toEncrypt"></param>
/// <param name="key"></param>
/// <param name="iv"></param>
/// <returns></returns>
public static string Encrypt(string toEncrypt, string key, string iv)
{
byte[] keyArray = UTF8Encoding.UTF8.GetBytes(key);
byte[] ivArray = UTF8Encoding.UTF8.GetBytes(iv);
byte[] toEncryptArray = UTF8Encoding.UTF8.GetBytes(toEncrypt); RijndaelManaged rDel = new RijndaelManaged();
rDel.Key = keyArray;
rDel.IV = ivArray;
rDel.Mode = CipherMode.CBC;
rDel.Padding = PaddingMode.Zeros; ICryptoTransform cTransform = rDel.CreateEncryptor();
byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, , toEncryptArray.Length); return Convert.ToBase64String(resultArray, , resultArray.Length);
}
/// <summary>
/// AES解密
/// </summary>
/// <param name="toDecrypt"></param>
/// <param name="key"></param>
/// <param name="iv"></param>
/// <returns></returns>
public static string Decrypt(string toDecrypt, string key, string iv)
{
byte[] keyArray = UTF8Encoding.UTF8.GetBytes(key);
byte[] ivArray = UTF8Encoding.UTF8.GetBytes(iv);
byte[] toEncryptArray = Convert.FromBase64String(toDecrypt); RijndaelManaged rDel = new RijndaelManaged();
rDel.Key = keyArray;
rDel.IV = ivArray;
rDel.Mode = CipherMode.CBC;
rDel.Padding = PaddingMode.Zeros; ICryptoTransform cTransform = rDel.CreateDecryptor();
byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, , toEncryptArray.Length); return UTF8Encoding.UTF8.GetString(resultArray);
}
}
}
