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Je le code suivant pour tester l'API WebCrypto. Cela fonctionne dans Firefox et Chrome et j'essaye de le faire fonctionner dans Safari.API Safari WebCrypto cryptage RSA-OAEP
function ab2str(buf) {
return String.fromCharCode.apply(null, new Uint16Array(buf));
}
//converts a forge 0.6.x string of bytes to an ArrayBuffer
function str2ab(str) {
var b = new ArrayBuffer(str.length);
var view = new Uint8Array(b);
for(var i = 0; i < str.length; ++i) {
view[i] = str.charCodeAt(i);
}
return b;
}
function _arrayBufferToBase64(buffer) {
var binary = '';
var bytes = new Uint8Array(buffer);
var len = bytes.byteLength;
for (var i = 0; i < len; i++) {
binary += String.fromCharCode(bytes[ i ]);
}
return window.btoa(binary);
}
var pubKey;
var privKey;
var s_pubKey="MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA5tieEkcDAqAp/baSmNIdg5ezJMcWJX63+hM/DQolgKtw9Dvc0c8GRUqK2r/idZ1iXJzOjWQ3KIFIzmgTRHOKe3aPgJADdZ2vyAqu2woKtsgQ8nTcDYI86dmyfYsHFbgbSn/qeoE8WEzwyT3OoGgn54zoMuQmUmLbGaJYY2XN5bxwqxsRJSoXetBu9o1G9Wy4V1fdxwjRtaO/2FrZfkLp/P5Tc5Hk1Ev7PIPrkRhrl/7lF4JblVRG5m90aeviErvFIN0LdlqiY90UaQY3gyTsylrheTlqRq6yyzKf3dWnF78+CeAqppsOMI+WHURThNLkN56EOTX6TaBrG6f2XjxeqQIDAQAB";
var cripto= window.crypto || window.msCrypto;
var subtle= cripto.subtle || window.crypto.webkitSubtle;
subtle.generateKey(
{
name: "RSA-OAEP",
modulusLength: 2048, //can be 1024, 2048, or 4096
publicExponent: new Uint8Array([0x01, 0x00, 0x01]),
hash: {name: "SHA-256"}, //can be "SHA-1", "SHA-256", "SHA-384", or "SHA-512"
},
true, //whether the key is extractable (i.e. can be used in exportKey)
["encrypt", "decrypt"] //must contain both "encrypt" and "decrypt"
)
.then(function(key){
//returns a keypair object
//console.log(key);
//console.log(key.publicKey);
//console.log(key.privateKey);
subtle.exportKey(
"jwk", //can be "jwk" (public or private), "spki" (public only), or "pkcs8" (private only)
key.publicKey //can be a publicKey or privateKey, as long as extractable was true
)
.then(function(keydata){
//returns the exported key data
console.log("publicKey:"+_arrayBufferToBase64(keydata));
subtle.exportKey(
"jwk", //can be "jwk" (public or private), "spki" (public only), or "pkcs8" (private only)
key.privateKey //can be a publicKey or privateKey, as long as extractable was true
)
.then(function(keydata){
//returns the exported key data
console.log("privateKey:"+_arrayBufferToBase64(keydata));
});
subtle.importKey(
"jwk", //can be "jwk" (public or private), "spki" (public only), or "pkcs8" (private only)
keydata,
{ //these are the algorithm options
name: "RSA-OAEP",
hash: {name: "SHA-256"}, //can be "SHA-1", "SHA-256", "SHA-384", or "SHA-512"
},
false, //whether the key is extractable (i.e. can be used in exportKey)
["encrypt"] //"encrypt" for public key import, "decrypt" for private key imports
)
.then(function(publicKey){
//returns a publicKey (or privateKey if you are importing a private key)
console.log(publicKey);
subtle.encrypt(
{
name: "RSA-OAEP",
//label: Uint8Array([...]) //optional
},
publicKey, //from generateKey or importKey above
str2ab("hola mundo") //ArrayBuffer of data you want to encrypt
)
.then(function(encrypted){
//returns an ArrayBuffer containing the encrypted data
//console.log(new Uint8Array(encrypted));
console.log("enc: "+_arrayBufferToBase64(encrypted));
})
.catch(function(err){
console.error(err);
});
})
})
})
.catch(function(err){
console.error(err);
});
Le problème est que subtle.encrypt est apparemment pas exécuté. Ni console.log ni console.error est appelée. Une idée de ce qui se passe? La ligne précédente "console.log (publicKey);" fonctionne bien.
Le lien dans cette réponse indique que le bug a été corrigé et résolu en Novembre 2016. Cependant, à partir d'aujourd'hui, je vois toujours se plaindre Safari 10.1.2 lorsque vous essayez d'importer une clé RSA-OAEP-256. Ne semble pas avoir atterri dans une version Safari de production pour le moment. :-( – RavenHursT