Add the SM4 block cipher, also a no-padding option for decrypting block ciphers. #1189
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This adds an implementation of the SM4 block cipher, and operations to encrypt and decrypt using it with CBC,ECB,CFB,OFB,CTR modes. Also, a "no padding" option is added for AES,DES,3DES and SM4 decryption in ECB/CBC modes. This variant does not attempt to validate the last block as being PKCS#7 padded. This is useful, both since other padding schemes exist, and also for decrypting data where the final block is missing.
This was referenced Mar 29, 2022
This was referenced Jul 14, 2022
This pull request was closed.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This adds an implementation of the SM4 block cipher, and operations
to encrypt and decrypt using it with CBC,ECB,CFB,OFB,CTR modes.
Also, a "no padding" option is added for AES,DES,3DES and SM4
decryption in ECB/CBC modes. This variant does not attempt to
validate the last block as being PKCS#7 padded.
This is useful, both since other padding schemes exist, and also
for decrypting data where the final block is missing or corrupted.
Adds no new external dependencies.