.ECPrivateKey(s) can not load Apple private key from 2.7.0

[bsz0206]

.ECPrivateKey(s) can not load Apple private key:

dart_jsonwebtoken.ECPrivateKey(certificateStr)

Invalid argument(s): The given string does not have the correct begin/end markers expected in a PEM file. -- #0 CryptoUtils.getBytesFromPEMString crypto_utils.dart:519 I/flutter (25799): #1...

this is working in 2.6.4 and stopped working from 2.7.0

The issue is that the cypto.util line 516, lines.lenght==1 when the certificate is given in 1 line

[jonasroussel]

Hello, Can you give me an example of an Apple private key or at least the structure with the content of the key hidden

[bsz0206]

This is an example p8 file download from Apple Certificate site directly. Some characters are replaced to make it invalid however the bug can be reproduced by it.

AppleAppStore_API_Key.p8.txt

[jonasroussel]

I tested the library using the certificate that you provided me with, and it works well. I attempted to replicate the issue by providing the certificate in a single line, and the error did indeed occur.

So I read the RFC 7468 (https://www.rfc-editor.org/rfc/rfc7468#section-2) and it's indicate how a PEM certificate must be structured and it must have at least 2 lines.

I don't know why it was working before, but to work your certificate must be in the format you gave me in the example, with line break.

Furthermore, I tested the jsonwebtoken JavaScript library using the certificate provided in a single line, and it also failed.

So, I could try to do a "fix" for that case, it would be an unnecessary feature for a edge case like this.

First: Try to find a solution in your own code, by not removing line breaks. Second: If you really can't, add this code:

dart_jsonwebtoken.ECPrivateKey(certificateStr
  .replaceAllMapped(RegExp('-----BEGIN PRIVATE KEY-----'), (match) => '${match.group(0)}\n')
  .replaceAllMapped(RegExp('-----END PRIVATE KEY-----'), (match) => '\n${match.group(0)}')
);