Bug 170274 – [GCrypt] Implement AES_KW support

• Component: New Bugs
• Status: RESOLVED FIXED

[Zan Dobersek]

[GCrypt] Implement AES_KW support

[Zan Dobersek]

Created attachment 305844 [details]
Patch

[Build Bot]

Attachment 305844 [details] did not pass style-queue:


ERROR: Source/WebCore/crypto/gcrypt/CryptoAlgorithmAES_KWGCrypt.cpp:109:  CryptoAlgorithmAES_KW::platformWrapKey is incorrectly named. Don't use underscores in your identifier names.  [readability/naming/underscores] [4]
ERROR: Source/WebCore/crypto/gcrypt/CryptoAlgorithmAES_KWGCrypt.cpp:121:  CryptoAlgorithmAES_KW::platformUnwrapKey is incorrectly named. Don't use underscores in your identifier names.  [readability/naming/underscores] [4]
Total errors found: 2 in 2 files


If any of these errors are false positives, please file a bug against check-webkit-style.

[Zan Dobersek]

Created attachment 305846 [details]
Patch

[Build Bot]

Attachment 305846 [details] did not pass style-queue:


ERROR: Source/WebCore/crypto/gcrypt/CryptoAlgorithmAES_KWGCrypt.cpp:110:  CryptoAlgorithmAES_KW::platformWrapKey is incorrectly named. Don't use underscores in your identifier names.  [readability/naming/underscores] [4]
ERROR: Source/WebCore/crypto/gcrypt/CryptoAlgorithmAES_KWGCrypt.cpp:122:  CryptoAlgorithmAES_KW::platformUnwrapKey is incorrectly named. Don't use underscores in your identifier names.  [readability/naming/underscores] [4]
Total errors found: 2 in 2 files


If any of these errors are false positives, please file a bug against check-webkit-style.

[Zan Dobersek]

Depends on the Utilities.h header that's being added in bug #170269, as well as the HandleDeleter<gcry_cipher_hd_t> specialization that's being added in bug #170271.

[Michael Catanzaro]

Comment on attachment 305846 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=305846&action=review

> Source/WebCore/crypto/gcrypt/CryptoAlgorithmAES_KWGCrypt.cpp:36
> +#include <pal/crypto/gcrypt/Handle.h>
> +#include <pal/crypto/gcrypt/Utilities.h>

:(

> Source/WebCore/crypto/gcrypt/CryptoAlgorithmAES_KWGCrypt.cpp:65
> +    Vector<uint8_t> output(data.size() + 8);

Correct, but it needs a short comment to explain the + 8 (e.g. "On encryption the provided output buffer must be 64 bit (8 byte) larger than the input buffer" from https://www.gnupg.org/documentation/manuals/gcrypt/Available-cipher-modes.html).

> Source/WebCore/crypto/gcrypt/CryptoAlgorithmAES_KWGCrypt.cpp:72
> +    return WTFMove(output);

:(

> Source/WebCore/crypto/gcrypt/CryptoAlgorithmAES_KWGCrypt.cpp:100
> +    Vector<uint8_t> output(data.size() - 8);

Comment

> Source/WebCore/crypto/gcrypt/CryptoAlgorithmAES_KWGCrypt.cpp:107
> +    return WTFMove(output);

:(

[Zan Dobersek]

Comment on attachment 305846 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=305846&action=review

>> Source/WebCore/crypto/gcrypt/CryptoAlgorithmAES_KWGCrypt.cpp:65
>> +    Vector<uint8_t> output(data.size() + 8);
> 
> Correct, but it needs a short comment to explain the + 8 (e.g. "On encryption the provided output buffer must be 64 bit (8 byte) larger than the input buffer" from https://www.gnupg.org/documentation/manuals/gcrypt/Available-cipher-modes.html).

OK.

>> Source/WebCore/crypto/gcrypt/CryptoAlgorithmAES_KWGCrypt.cpp:100
>> +    Vector<uint8_t> output(data.size() - 8);
> 
> Comment

OK.

[Zan Dobersek]

Created attachment 306071 [details]
Patch for landing

Still depends on bug #170271.

[Zan Dobersek]

Created attachment 306087 [details]
Patch for landing

[Build Bot]

Attachment 306087 [details] did not pass style-queue:


ERROR: Source/WebCore/crypto/gcrypt/CryptoAlgorithmAES_KWGCrypt.cpp:112:  CryptoAlgorithmAES_KW::platformWrapKey is incorrectly named. Don't use underscores in your identifier names.  [readability/naming/underscores] [4]
ERROR: Source/WebCore/crypto/gcrypt/CryptoAlgorithmAES_KWGCrypt.cpp:124:  CryptoAlgorithmAES_KW::platformUnwrapKey is incorrectly named. Don't use underscores in your identifier names.  [readability/naming/underscores] [4]
Total errors found: 2 in 2 files


If any of these errors are false positives, please file a bug against check-webkit-style.

[Zan Dobersek]

Comment on attachment 306087 [details]
Patch for landing

Clearing flags on attachment: 306087

Committed r214823: <http://trac.webkit.org/changeset/214823>

[Zan Dobersek]

All reviewed patches have been landed.  Closing bug.