Python/cryptography: ValueError: Could not deserialize key data












0















I am trying to encoded a JWT payload using "RS256", but I'm getting ValueError: Could not deserialize key data. error from the cryptography library.



import jwt
private_key = b'-----BEGIN PRIVATE KEY-----nMIGEAgEAMBAGByqGSM49AgEGBS...'
public_key = b'-----BEGIN PUBLIC KEY-----nMHYwEAYHKoZIzj0CAQYFK4EEAC...'
encoded = jwt.encode({'some': 'payload'}, private_key, algorithm='RS256')


But I'm getting the following error.



Traceback (most recent call last):
File "/Users/user1/venv_1/lib/python3.7/site-packages/jwt/algorithms.py", line 205, in prepare_key
key = load_pem_private_key(key, password=None, backend=default_backend())
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/primitives/serialization.py", line 20, in load_pem_private_key
return backend.load_pem_private_key(data, password)
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/backends/openssl/backend.py", line 1016, in load_pem_private_key
password,
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/backends/openssl/backend.py", line 1235, in _load_key
self._handle_key_loading_error()
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/backends/openssl/backend.py", line 1293, in _handle_key_loading_error
raise ValueError("Could not deserialize key data.")
ValueError: Could not deserialize key data.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Users/user1/venv_1/lib/python3.7/site-packages/jwt/api_jwt.py", line 65, in encode
json_payload, key, algorithm, headers, json_encoder
File "/Users/user1/venv_1/lib/python3.7/site-packages/jwt/api_jws.py", line 113, in encode
key = alg_obj.prepare_key(key)
File "/Users/user1/venv_1/lib/python3.7/site-packages/jwt/algorithms.py", line 207, in prepare_key
key = load_pem_public_key(key, backend=default_backend())
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/primitives/serialization.py", line 24, in load_pem_public_key
return backend.load_pem_public_key(data)
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/backends/openssl/backend.py", line 1042, in load_pem_public_key
self._handle_key_loading_error()
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/backends/openssl/backend.py", line 1293, in _handle_key_loading_error
raise ValueError("Could not deserialize key data.")
ValueError: Could not deserialize key data.









share|improve this question























  • Possibly only include the private key data after the newline (n)?

    – Sam Hollenbach
    Jan 18 at 17:42











  • @SamHollenbach Can you show code example please?

    – user1187968
    Jan 18 at 17:45











  • Just private_key = b'MIGEAgEAMBAGByqGSM49AgEGBS...'. Not sure if this will work, but just a thought.

    – Sam Hollenbach
    Jan 18 at 17:46











  • Try this thread too: github.com/jpadilla/pyjwt/issues/257

    – Sam Hollenbach
    Jan 18 at 17:47











  • It works for me. My guess is your private_key is simply malformed.

    – James K Polk
    Jan 18 at 20:00


















0















I am trying to encoded a JWT payload using "RS256", but I'm getting ValueError: Could not deserialize key data. error from the cryptography library.



import jwt
private_key = b'-----BEGIN PRIVATE KEY-----nMIGEAgEAMBAGByqGSM49AgEGBS...'
public_key = b'-----BEGIN PUBLIC KEY-----nMHYwEAYHKoZIzj0CAQYFK4EEAC...'
encoded = jwt.encode({'some': 'payload'}, private_key, algorithm='RS256')


But I'm getting the following error.



Traceback (most recent call last):
File "/Users/user1/venv_1/lib/python3.7/site-packages/jwt/algorithms.py", line 205, in prepare_key
key = load_pem_private_key(key, password=None, backend=default_backend())
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/primitives/serialization.py", line 20, in load_pem_private_key
return backend.load_pem_private_key(data, password)
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/backends/openssl/backend.py", line 1016, in load_pem_private_key
password,
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/backends/openssl/backend.py", line 1235, in _load_key
self._handle_key_loading_error()
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/backends/openssl/backend.py", line 1293, in _handle_key_loading_error
raise ValueError("Could not deserialize key data.")
ValueError: Could not deserialize key data.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Users/user1/venv_1/lib/python3.7/site-packages/jwt/api_jwt.py", line 65, in encode
json_payload, key, algorithm, headers, json_encoder
File "/Users/user1/venv_1/lib/python3.7/site-packages/jwt/api_jws.py", line 113, in encode
key = alg_obj.prepare_key(key)
File "/Users/user1/venv_1/lib/python3.7/site-packages/jwt/algorithms.py", line 207, in prepare_key
key = load_pem_public_key(key, backend=default_backend())
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/primitives/serialization.py", line 24, in load_pem_public_key
return backend.load_pem_public_key(data)
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/backends/openssl/backend.py", line 1042, in load_pem_public_key
self._handle_key_loading_error()
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/backends/openssl/backend.py", line 1293, in _handle_key_loading_error
raise ValueError("Could not deserialize key data.")
ValueError: Could not deserialize key data.









share|improve this question























  • Possibly only include the private key data after the newline (n)?

    – Sam Hollenbach
    Jan 18 at 17:42











  • @SamHollenbach Can you show code example please?

    – user1187968
    Jan 18 at 17:45











  • Just private_key = b'MIGEAgEAMBAGByqGSM49AgEGBS...'. Not sure if this will work, but just a thought.

    – Sam Hollenbach
    Jan 18 at 17:46











  • Try this thread too: github.com/jpadilla/pyjwt/issues/257

    – Sam Hollenbach
    Jan 18 at 17:47











  • It works for me. My guess is your private_key is simply malformed.

    – James K Polk
    Jan 18 at 20:00
















0












0








0








I am trying to encoded a JWT payload using "RS256", but I'm getting ValueError: Could not deserialize key data. error from the cryptography library.



import jwt
private_key = b'-----BEGIN PRIVATE KEY-----nMIGEAgEAMBAGByqGSM49AgEGBS...'
public_key = b'-----BEGIN PUBLIC KEY-----nMHYwEAYHKoZIzj0CAQYFK4EEAC...'
encoded = jwt.encode({'some': 'payload'}, private_key, algorithm='RS256')


But I'm getting the following error.



Traceback (most recent call last):
File "/Users/user1/venv_1/lib/python3.7/site-packages/jwt/algorithms.py", line 205, in prepare_key
key = load_pem_private_key(key, password=None, backend=default_backend())
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/primitives/serialization.py", line 20, in load_pem_private_key
return backend.load_pem_private_key(data, password)
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/backends/openssl/backend.py", line 1016, in load_pem_private_key
password,
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/backends/openssl/backend.py", line 1235, in _load_key
self._handle_key_loading_error()
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/backends/openssl/backend.py", line 1293, in _handle_key_loading_error
raise ValueError("Could not deserialize key data.")
ValueError: Could not deserialize key data.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Users/user1/venv_1/lib/python3.7/site-packages/jwt/api_jwt.py", line 65, in encode
json_payload, key, algorithm, headers, json_encoder
File "/Users/user1/venv_1/lib/python3.7/site-packages/jwt/api_jws.py", line 113, in encode
key = alg_obj.prepare_key(key)
File "/Users/user1/venv_1/lib/python3.7/site-packages/jwt/algorithms.py", line 207, in prepare_key
key = load_pem_public_key(key, backend=default_backend())
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/primitives/serialization.py", line 24, in load_pem_public_key
return backend.load_pem_public_key(data)
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/backends/openssl/backend.py", line 1042, in load_pem_public_key
self._handle_key_loading_error()
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/backends/openssl/backend.py", line 1293, in _handle_key_loading_error
raise ValueError("Could not deserialize key data.")
ValueError: Could not deserialize key data.









share|improve this question














I am trying to encoded a JWT payload using "RS256", but I'm getting ValueError: Could not deserialize key data. error from the cryptography library.



import jwt
private_key = b'-----BEGIN PRIVATE KEY-----nMIGEAgEAMBAGByqGSM49AgEGBS...'
public_key = b'-----BEGIN PUBLIC KEY-----nMHYwEAYHKoZIzj0CAQYFK4EEAC...'
encoded = jwt.encode({'some': 'payload'}, private_key, algorithm='RS256')


But I'm getting the following error.



Traceback (most recent call last):
File "/Users/user1/venv_1/lib/python3.7/site-packages/jwt/algorithms.py", line 205, in prepare_key
key = load_pem_private_key(key, password=None, backend=default_backend())
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/primitives/serialization.py", line 20, in load_pem_private_key
return backend.load_pem_private_key(data, password)
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/backends/openssl/backend.py", line 1016, in load_pem_private_key
password,
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/backends/openssl/backend.py", line 1235, in _load_key
self._handle_key_loading_error()
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/backends/openssl/backend.py", line 1293, in _handle_key_loading_error
raise ValueError("Could not deserialize key data.")
ValueError: Could not deserialize key data.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Users/user1/venv_1/lib/python3.7/site-packages/jwt/api_jwt.py", line 65, in encode
json_payload, key, algorithm, headers, json_encoder
File "/Users/user1/venv_1/lib/python3.7/site-packages/jwt/api_jws.py", line 113, in encode
key = alg_obj.prepare_key(key)
File "/Users/user1/venv_1/lib/python3.7/site-packages/jwt/algorithms.py", line 207, in prepare_key
key = load_pem_public_key(key, backend=default_backend())
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/primitives/serialization.py", line 24, in load_pem_public_key
return backend.load_pem_public_key(data)
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/backends/openssl/backend.py", line 1042, in load_pem_public_key
self._handle_key_loading_error()
File "/Users/user1/venv_1/lib/python3.7/site-packages/cryptography/hazmat/backends/openssl/backend.py", line 1293, in _handle_key_loading_error
raise ValueError("Could not deserialize key data.")
ValueError: Could not deserialize key data.






python python-3.x encryption cryptography jwt






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Jan 18 at 17:39









user1187968user1187968

98342252




98342252













  • Possibly only include the private key data after the newline (n)?

    – Sam Hollenbach
    Jan 18 at 17:42











  • @SamHollenbach Can you show code example please?

    – user1187968
    Jan 18 at 17:45











  • Just private_key = b'MIGEAgEAMBAGByqGSM49AgEGBS...'. Not sure if this will work, but just a thought.

    – Sam Hollenbach
    Jan 18 at 17:46











  • Try this thread too: github.com/jpadilla/pyjwt/issues/257

    – Sam Hollenbach
    Jan 18 at 17:47











  • It works for me. My guess is your private_key is simply malformed.

    – James K Polk
    Jan 18 at 20:00





















  • Possibly only include the private key data after the newline (n)?

    – Sam Hollenbach
    Jan 18 at 17:42











  • @SamHollenbach Can you show code example please?

    – user1187968
    Jan 18 at 17:45











  • Just private_key = b'MIGEAgEAMBAGByqGSM49AgEGBS...'. Not sure if this will work, but just a thought.

    – Sam Hollenbach
    Jan 18 at 17:46











  • Try this thread too: github.com/jpadilla/pyjwt/issues/257

    – Sam Hollenbach
    Jan 18 at 17:47











  • It works for me. My guess is your private_key is simply malformed.

    – James K Polk
    Jan 18 at 20:00



















Possibly only include the private key data after the newline (n)?

– Sam Hollenbach
Jan 18 at 17:42





Possibly only include the private key data after the newline (n)?

– Sam Hollenbach
Jan 18 at 17:42













@SamHollenbach Can you show code example please?

– user1187968
Jan 18 at 17:45





@SamHollenbach Can you show code example please?

– user1187968
Jan 18 at 17:45













Just private_key = b'MIGEAgEAMBAGByqGSM49AgEGBS...'. Not sure if this will work, but just a thought.

– Sam Hollenbach
Jan 18 at 17:46





Just private_key = b'MIGEAgEAMBAGByqGSM49AgEGBS...'. Not sure if this will work, but just a thought.

– Sam Hollenbach
Jan 18 at 17:46













Try this thread too: github.com/jpadilla/pyjwt/issues/257

– Sam Hollenbach
Jan 18 at 17:47





Try this thread too: github.com/jpadilla/pyjwt/issues/257

– Sam Hollenbach
Jan 18 at 17:47













It works for me. My guess is your private_key is simply malformed.

– James K Polk
Jan 18 at 20:00







It works for me. My guess is your private_key is simply malformed.

– James K Polk
Jan 18 at 20:00














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


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f54258946%2fpython-cryptography-valueerror-could-not-deserialize-key-data%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














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f54258946%2fpython-cryptography-valueerror-could-not-deserialize-key-data%23new-answer', 'question_page');
}
);

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







Popular posts from this blog

Homophylophilia

Updating UILabel text programmatically using a function

Cloud Functions - OpenCV Videocapture Read method fails for larger files from cloud storage