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Crypto Services (utils) - Support for SHA224-512

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janekptacijarabaci 2017-08-10 17:42:10 +02:00 • committed by Roy Tam
commit b5b976ad99
2 changed files with 45 additions and 40 deletions
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3
netwerk/base/nsICryptoHash.idl
View file

@ -10,7 +10,7 @@ interface nsIInputStream;
* This interface provides crytographic hashing algorithms.
*/
[scriptable, uuid(1e5b7c43-4688-45ce-92e1-77ed931e3bbe)]
[scriptable, uuid(0a248513-dfa7-4474-8777-8c452d60dd04)]
interface nsICryptoHash : nsISupports
{
/**
@ -25,6 +25,7 @@ interface nsICryptoHash : nsISupports
const short SHA256 = 4; /* String value: "sha256" */
const short SHA384 = 5; /* String value: "sha384" */
const short SHA512 = 6; /* String value: "sha512" */
const short SHA224 = 7; /* String value: "sha224" */
/**
* Initialize the hashing object. This method may be

82
services/crypto/modules/utils.js
View file

@ -76,43 +76,6 @@ this.CryptoUtils = {
hasher.update(bytes, bytes.length);
},
/**
* UTF-8 encode a message and perform a SHA-1 over it.
*
* @param message
* (string) Buffer to perform operation on. Should be a JS string.
* It is possible to pass in a string representing an array
* of bytes. But, you probably don't want to UTF-8 encode
* such data and thus should not be using this function.
*
* @return string
* Raw bytes constituting SHA-1 hash. Value is a JS string. Each
* character is the byte value for that offset. Returned string
* always has .length == 20.
*/
UTF8AndSHA1: function UTF8AndSHA1(message) {
let hasher = Cc["@mozilla.org/security/hash;1"]
.createInstance(Ci.nsICryptoHash);
hasher.init(hasher.SHA1);
return CryptoUtils.digestUTF8(message, hasher);
},
sha1: function sha1(message) {
return CommonUtils.bytesAsHex(CryptoUtils.UTF8AndSHA1(message));
},
sha1Base32: function sha1Base32(message) {
return CommonUtils.encodeBase32(CryptoUtils.UTF8AndSHA1(message));
},
sha256(message) {
let hasher = Cc["@mozilla.org/security/hash;1"]
.createInstance(Ci.nsICryptoHash);
hasher.init(hasher.SHA256);
return CommonUtils.bytesAsHex(CryptoUtils.digestUTF8(message, hasher));
},
/**
* Produce an HMAC key object from a key string.
*/
@ -187,9 +150,8 @@ this.CryptoUtils = {
hmacAlg=Ci.nsICryptoHMAC.SHA1, hmacLen=20) {
// We don't have a default in the algo itself, as NSS does.
// Use the constant.
if (!dkLen) {
dkLen = SYNC_KEY_DECODED_LENGTH;
throw new Error("dkLen should be defined");
}
function F(S, c, i, h) {
@ -551,6 +513,48 @@ this.CryptoUtils = {
};
/**
* Hashing Algorithms SHA-X.
* These values map directly onto the values defined
* in netwerk/base/nsICryptoHash.idl.
*/
let shaX = ["1", "256", "384", "512", "224"];
for (let shaIdx = 0, shaIdxLen = shaX.length; shaIdx < shaIdxLen; shaIdx++) {
let shaXIdx = shaX[shaIdx];
/**
* UTF-8 encode a message and perform a SHA-X over it.
*
* @param message
* (string) Buffer to perform operation on. Should be a JS string.
* It is possible to pass in a string representing an array
* of bytes. But, you probably don't want to UTF-8 encode
* such data and thus should not be using this function.
*
* @return string
* Raw bytes constituting SHA-X hash. Value is a JS string.
* Each character is the byte value for that offset.
*/
CryptoUtils["UTF8AndSHA" + shaXIdx] = function (message) {
let hasher = Cc["@mozilla.org/security/hash;1"]
.createInstance(Ci.nsICryptoHash);
hasher.init(hasher["SHA" + shaXIdx]);
return CryptoUtils.digestUTF8(message, hasher);
};
CryptoUtils["sha" + shaXIdx] = function (message) {
return CommonUtils.bytesAsHex(
CryptoUtils["UTF8AndSHA" + shaXIdx](message));
};
CryptoUtils["sha" + shaXIdx + "Base32"] = function (message) {
return CommonUtils.encodeBase32(
CryptoUtils["UTF8AndSHA" + shaXIdx](message));
};
}
XPCOMUtils.defineLazyGetter(CryptoUtils, "_utf8Converter", function() {
let converter = Cc["@mozilla.org/intl/scriptableunicodeconverter"]
.createInstance(Ci.nsIScriptableUnicodeConverter);