Different HMAC result for JAVA and iOS
1
I'm trying to generate HMAC based on string value and key
public static byte hmacSha1(String value, String key) throws NoSuchAlgorithmException, InvalidKeyException {
// some values hardcoded for simplicity of this code sample
key = "GET\n?nodeList\nThu, 10 Jul 2014 13:35:32 GMT\nda39a3ee5e6b4b0d3255bfef95601890afd80709\n";;
value = "6020834c535670ab1da86f7697241cb43ab6fb90";
final String type = "HmacSHA1";
final String charset = "ASCII";
byte keyBytes = new byte[0];
try {
keyBytes = key.getBytes(charset);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
SecretKeySpec secret = new SecretKeySpec(keyBytes, type);
Mac mac = Mac.getInstance(type);
mac.init(secret);
byte bytes = new byte[0];
try {
bytes = mac.doFinal(value.getBytes(charset));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
Log.d(TAG, "bytes to hex: " + bytesToHex(bytes));
// result Android: 512B5CE2EA1CD71FF34C9DDB693F59288EF71B42
// iOS: 96f852a08d3ee255b77364a6bbd106be0dc0e44e
return bytes;
}
And Android result (hex value) doesn't match the one that has iOS app (using same string value and key).
(NSString *)HMAC_SHA1WithKeyData:(NSData* )key
{
const char * cData = [self cStringUsingEncoding:NSASCIIStringEncoding];
unsigned char cHMAC[CC_SHA1_DIGEST_LENGTH];
CCHmac(kCCHmacAlgSHA1, [key bytes], [key length], cData, strlen(cData), cHMAC);
NSData *HMAC = [[NSData alloc] initWithBytes:cHMAC
length:sizeof(cHMAC)];
const unsigned char * buffer = (const unsigned char *)[HMAC bytes];
NSMutableString *HMACString = [NSMutableString stringWithCapacity:HMAC.length* 2];
for (int i = 0; i < HMAC.length; i++) {
[HMACString appendFormat:@“%02x”, buffer[i]];
}
return HMACString;
}
Android HMAC (hex): 512B5CE2EA1CD71FF34C9DDB693F59288EF71B42
iOS HMAC: 96f852a08d3ee255b77364a6bbd106be0dc0e44e
Can someone clarify please how can i get the same HMAC as iOS does (cause it matches the back-end result).
java
android ios hmac sha edited Nov 15 '18 at 17:04
Woodstock
12.6k1261100
asked Nov 15 '18 at 16:52
altavista.uaaltavista.ua
61
add a comment |
1
I'm trying to generate HMAC based on string value and key
public static byte hmacSha1(String value, String key) throws NoSuchAlgorithmException, InvalidKeyException {
// some values hardcoded for simplicity of this code sample
key = "GET\n?nodeList\nThu, 10 Jul 2014 13:35:32 GMT\nda39a3ee5e6b4b0d3255bfef95601890afd80709\n";;
value = "6020834c535670ab1da86f7697241cb43ab6fb90";
final String type = "HmacSHA1";
final String charset = "ASCII";
byte keyBytes = new byte[0];
try {
keyBytes = key.getBytes(charset);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
SecretKeySpec secret = new SecretKeySpec(keyBytes, type);
Mac mac = Mac.getInstance(type);
mac.init(secret);
byte bytes = new byte[0];
try {
bytes = mac.doFinal(value.getBytes(charset));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
Log.d(TAG, "bytes to hex: " + bytesToHex(bytes));
// result Android: 512B5CE2EA1CD71FF34C9DDB693F59288EF71B42
// iOS: 96f852a08d3ee255b77364a6bbd106be0dc0e44e
return bytes;
}
And Android result (hex value) doesn't match the one that has iOS app (using same string value and key).
(NSString *)HMAC_SHA1WithKeyData:(NSData* )key
{
const char * cData = [self cStringUsingEncoding:NSASCIIStringEncoding];
unsigned char cHMAC[CC_SHA1_DIGEST_LENGTH];
CCHmac(kCCHmacAlgSHA1, [key bytes], [key length], cData, strlen(cData), cHMAC);
NSData *HMAC = [[NSData alloc] initWithBytes:cHMAC
length:sizeof(cHMAC)];
const unsigned char * buffer = (const unsigned char *)[HMAC bytes];
NSMutableString *HMACString = [NSMutableString stringWithCapacity:HMAC.length* 2];
for (int i = 0; i < HMAC.length; i++) {
[HMACString appendFormat:@“%02x”, buffer[i]];
}
return HMACString;
}
Android HMAC (hex): 512B5CE2EA1CD71FF34C9DDB693F59288EF71B42
iOS HMAC: 96f852a08d3ee255b77364a6bbd106be0dc0e44e
Can someone clarify please how can i get the same HMAC as iOS does (cause it matches the back-end result).
java
android ios hmac sha edited Nov 15 '18 at 17:04
Woodstock
12.6k1261100
asked Nov 15 '18 at 16:52
altavista.uaaltavista.ua
61
sory for some code formatting issues, couldn't find the correct way to paste iOS part
– altavista.ua
Nov 15 '18 at 16:55
add a comment |
1
1
1
1
I'm trying to generate HMAC based on string value and key
public static byte hmacSha1(String value, String key) throws NoSuchAlgorithmException, InvalidKeyException {
// some values hardcoded for simplicity of this code sample
key = "GET\n?nodeList\nThu, 10 Jul 2014 13:35:32 GMT\nda39a3ee5e6b4b0d3255bfef95601890afd80709\n";;
value = "6020834c535670ab1da86f7697241cb43ab6fb90";
final String type = "HmacSHA1";
final String charset = "ASCII";
byte keyBytes = new byte[0];
try {
keyBytes = key.getBytes(charset);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
SecretKeySpec secret = new SecretKeySpec(keyBytes, type);
Mac mac = Mac.getInstance(type);
mac.init(secret);
byte bytes = new byte[0];
try {
bytes = mac.doFinal(value.getBytes(charset));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
Log.d(TAG, "bytes to hex: " + bytesToHex(bytes));
// result Android: 512B5CE2EA1CD71FF34C9DDB693F59288EF71B42
// iOS: 96f852a08d3ee255b77364a6bbd106be0dc0e44e
return bytes;
}
And Android result (hex value) doesn't match the one that has iOS app (using same string value and key).
(NSString *)HMAC_SHA1WithKeyData:(NSData* )key
{
const char * cData = [self cStringUsingEncoding:NSASCIIStringEncoding];
unsigned char cHMAC[CC_SHA1_DIGEST_LENGTH];
CCHmac(kCCHmacAlgSHA1, [key bytes], [key length], cData, strlen(cData), cHMAC);
NSData *HMAC = [[NSData alloc] initWithBytes:cHMAC
length:sizeof(cHMAC)];
const unsigned char * buffer = (const unsigned char *)[HMAC bytes];
NSMutableString *HMACString = [NSMutableString stringWithCapacity:HMAC.length* 2];
for (int i = 0; i < HMAC.length; i++) {
[HMACString appendFormat:@“%02x”, buffer[i]];
}
return HMACString;
}
Android HMAC (hex): 512B5CE2EA1CD71FF34C9DDB693F59288EF71B42
iOS HMAC: 96f852a08d3ee255b77364a6bbd106be0dc0e44e
Can someone clarify please how can i get the same HMAC as iOS does (cause it matches the back-end result).
java
android ios hmac sha edited Nov 15 '18 at 17:04
Woodstock
12.6k1261100
asked Nov 15 '18 at 16:52
altavista.uaaltavista.ua
61
I'm trying to generate HMAC based on string value and key
public static byte hmacSha1(String value, String key) throws NoSuchAlgorithmException, InvalidKeyException {
// some values hardcoded for simplicity of this code sample
key = "GET\n?nodeList\nThu, 10 Jul 2014 13:35:32 GMT\nda39a3ee5e6b4b0d3255bfef95601890afd80709\n";;
value = "6020834c535670ab1da86f7697241cb43ab6fb90";
final String type = "HmacSHA1";
final String charset = "ASCII";
byte keyBytes = new byte[0];
try {
keyBytes = key.getBytes(charset);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
SecretKeySpec secret = new SecretKeySpec(keyBytes, type);
Mac mac = Mac.getInstance(type);
mac.init(secret);
byte bytes = new byte[0];
try {
bytes = mac.doFinal(value.getBytes(charset));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
Log.d(TAG, "bytes to hex: " + bytesToHex(bytes));
// result Android: 512B5CE2EA1CD71FF34C9DDB693F59288EF71B42
// iOS: 96f852a08d3ee255b77364a6bbd106be0dc0e44e
return bytes;
}
And Android result (hex value) doesn't match the one that has iOS app (using same string value and key).
(NSString *)HMAC_SHA1WithKeyData:(NSData* )key
{
const char * cData = [self cStringUsingEncoding:NSASCIIStringEncoding];
unsigned char cHMAC[CC_SHA1_DIGEST_LENGTH];
CCHmac(kCCHmacAlgSHA1, [key bytes], [key length], cData, strlen(cData), cHMAC);
NSData *HMAC = [[NSData alloc] initWithBytes:cHMAC
length:sizeof(cHMAC)];
const unsigned char * buffer = (const unsigned char *)[HMAC bytes];
NSMutableString *HMACString = [NSMutableString stringWithCapacity:HMAC.length* 2];
for (int i = 0; i < HMAC.length; i++) {
[HMACString appendFormat:@“%02x”, buffer[i]];
}
return HMACString;
}
Android HMAC (hex): 512B5CE2EA1CD71FF34C9DDB693F59288EF71B42
iOS HMAC: 96f852a08d3ee255b77364a6bbd106be0dc0e44e
Can someone clarify please how can i get the same HMAC as iOS does (cause it matches the back-end result).
java
android ios hmac sha java
android ios hmac sha edited Nov 15 '18 at 17:04
Woodstock
12.6k1261100
asked Nov 15 '18 at 16:52
altavista.uaaltavista.ua
61
edited Nov 15 '18 at 17:04
Woodstock
12.6k1261100
asked Nov 15 '18 at 16:52
altavista.uaaltavista.ua
61
edited Nov 15 '18 at 17:04
Woodstock
12.6k1261100
edited Nov 15 '18 at 17:04
Woodstock
12.6k1261100
edited Nov 15 '18 at 17:04
Woodstock
12.6k1261100
12.6k1261100
asked Nov 15 '18 at 16:52
altavista.uaaltavista.ua
61
asked Nov 15 '18 at 16:52
altavista.uaaltavista.ua
61
asked Nov 15 '18 at 16:52
altavista.uaaltavista.ua
61
61
sory for some code formatting issues, couldn't find the correct way to paste iOS part
– altavista.ua
Nov 15 '18 at 16:55
add a comment |
sory for some code formatting issues, couldn't find the correct way to paste iOS part
– altavista.ua
Nov 15 '18 at 16:55
sory for some code formatting issues, couldn't find the correct way to paste iOS part
– altavista.ua
Nov 15 '18 at 16:55
sory for some code formatting issues, couldn't find the correct way to paste iOS part
– altavista.ua
Nov 15 '18 at 16:55
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53324308%2fdifferent-hmac-result-for-java-and-ios%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
draft saved
draft discarded
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53324308%2fdifferent-hmac-result-for-java-and-ios%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
sory for some code formatting issues, couldn't find the correct way to paste iOS part
– altavista.ua
Nov 15 '18 at 16:55