質問編集履歴
5
block and padding
test
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test
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@@ -191,3 +191,21 @@
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191
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};
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```
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+
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196
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197
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## block and paddingなどについて
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198
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199
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```
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padding : 2
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unpadding : 1
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blockSize : 4
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mode : processBlock : 2
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208
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209
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algorithm : keysize : 8
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210
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```
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4
optionを追加
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test
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@@ -103,3 +103,91 @@
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```
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↑で暗号化を行っています。
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106
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+
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107
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+
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108
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109
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+
## optionの中身
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110
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+
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111
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```
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112
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+
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113
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const option = {
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114
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+
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115
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format: {
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116
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+
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117
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+
stringify(cipherParams) {
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118
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+
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119
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+
// create json object with ciphertext
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120
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+
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121
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const jsonObj = {
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122
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+
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123
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ct: cipherParams.ciphertext.toString(CryptoJS.enc.Base64)
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124
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+
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125
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};
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126
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+
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127
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128
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+
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129
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+
// optionally add iv and salt
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130
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+
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131
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+
if (cipherParams.iv) {
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132
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+
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133
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+
jsonObj.iv = cipherParams.iv.toString();
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134
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+
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135
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}
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136
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+
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137
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+
if (cipherParams.salt) {
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138
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+
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139
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+
jsonObj.s = cipherParams.salt.toString();
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140
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+
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141
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}
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142
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+
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143
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+
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144
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145
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// stringify json object
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146
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+
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147
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return JSON.stringify(jsonObj);
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148
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+
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149
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},
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150
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+
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151
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+
parse(jsonStr) {
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152
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153
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// parse json string
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154
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+
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155
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+
const jsonObj = JSON.parse(jsonStr);
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156
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+
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157
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+
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158
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+
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159
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+
// extract ciphertext from json object, and create cipher params object
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160
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+
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161
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+
const cipherParams = CryptoJS.lib.CipherParams.create({
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162
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+
|
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163
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+
ciphertext: CryptoJS.enc.Base64.parse(jsonObj.ct)
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164
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+
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165
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+
});
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166
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+
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167
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+
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168
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+
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169
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+
// optionally extract iv and salt
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170
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+
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171
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+
if (jsonObj.iv) {
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172
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+
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173
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+
cipherParams.iv = CryptoJS.enc.Hex.parse(jsonObj.iv)
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174
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+
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175
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+
}
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176
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+
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177
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+
if (jsonObj.s) {
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178
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+
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179
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+
cipherParams.salt = CryptoJS.enc.Hex.parse(jsonObj.s)
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180
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+
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181
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}
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182
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+
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183
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+
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184
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+
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185
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+
return cipherParams;
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186
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+
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187
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+
}
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188
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+
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189
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}
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190
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+
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191
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+
};
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192
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+
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193
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+
```
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3
暗号化処理を追記
test
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File without changes
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test
CHANGED
|
@@ -45,3 +45,61 @@
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45
45
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## crypto-js
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|
46
46
|
|
|
47
47
|
[crypto-js](https://code.google.com/p/crypto-js/#The_Cipher_Output)
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|
48
|
+
|
|
49
|
+
|
|
50
|
+
|
|
51
|
+
## Jsで行っていること
|
|
52
|
+
|
|
53
|
+
```
|
|
54
|
+
|
|
55
|
+
CryptoJS.AES.encrypt(plaintext, secret(), option).toString();
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56
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+
|
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57
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+
encrypt: function (cipher, message, key, cfg) {
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58
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+
|
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59
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+
// Apply config defaults
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60
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+
|
|
61
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+
cfg = this.cfg.extend(cfg);
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62
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+
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63
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+
|
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64
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+
|
|
65
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+
// Encrypt
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|
66
|
+
|
|
67
|
+
var encryptor = cipher.createEncryptor(key, cfg);
|
|
68
|
+
|
|
69
|
+
var ciphertext = encryptor.finalize(message);
|
|
70
|
+
|
|
71
|
+
|
|
72
|
+
|
|
73
|
+
// Shortcut
|
|
74
|
+
|
|
75
|
+
var cipherCfg = encryptor.cfg;
|
|
76
|
+
|
|
77
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+
|
|
78
|
+
|
|
79
|
+
// Create and return serializable cipher params
|
|
80
|
+
|
|
81
|
+
return CipherParams.create({
|
|
82
|
+
|
|
83
|
+
ciphertext: ciphertext,
|
|
84
|
+
|
|
85
|
+
key: key,
|
|
86
|
+
|
|
87
|
+
iv: cipherCfg.iv,
|
|
88
|
+
|
|
89
|
+
algorithm: cipher,
|
|
90
|
+
|
|
91
|
+
mode: cipherCfg.mode,
|
|
92
|
+
|
|
93
|
+
padding: cipherCfg.padding,
|
|
94
|
+
|
|
95
|
+
blockSize: cipher.blockSize,
|
|
96
|
+
|
|
97
|
+
formatter: cfg.format
|
|
98
|
+
|
|
99
|
+
});
|
|
100
|
+
|
|
101
|
+
}
|
|
102
|
+
|
|
103
|
+
```
|
|
104
|
+
|
|
105
|
+
↑で暗号化を行っています。
|
2
リンク追加
test
CHANGED
|
File without changes
|
test
CHANGED
|
@@ -44,4 +44,4 @@
|
|
|
44
44
|
|
|
45
45
|
## crypto-js
|
|
46
46
|
|
|
47
|
-
https://code.google.com/p/crypto-js/#The_Cipher_Output
|
|
47
|
+
[crypto-js](https://code.google.com/p/crypto-js/#The_Cipher_Output)
|
1
リンク追加
test
CHANGED
|
File without changes
|
test
CHANGED
|
@@ -39,3 +39,9 @@
|
|
|
39
39
|
ご教授いただけますと幸いです。
|
|
40
40
|
|
|
41
41
|
何卒よろしくお願いいたします。
|
|
42
|
+
|
|
43
|
+
|
|
44
|
+
|
|
45
|
+
## crypto-js
|
|
46
|
+
|
|
47
|
+
https://code.google.com/p/crypto-js/#The_Cipher_Output
|