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4 Commits

Author SHA1 Message Date
KongQun Yang c6445b749c Change AesCbcEncryptor/AesCbcDecryptor kNoPadding behavior 
Leave unaligned residual block in clear in stead of rejecting it.

Change-Id: Id5452f32f6147e26ac68d9cddb948e8b4f77d107
 2016-04-15 13:31:09 -07:00
KongQun Yang 5fc09763ce More cleanups in AesEncryptor and AesDecryptor 
- Create AesCryptor class as the common base
- AesCryptor::Crypt function will serve as an Encrypt function for
  encryptor and a Decrypt function for Decryptor.

Change-Id: Ie91fb14964b5091786705bf510656f40d73af160
 2016-04-11 23:30:32 +00:00
KongQun Yang a9e5a2ff4f Refactor and optimize cbc encryption/decryption 
- Optimize and clean up encryption and decryption code.
- Consolidate various CBC encryption/decryption schemes into a
  common class.
- Make it a constructor argument whether cipher block chain is
  continuous across Encrypt/Decrypt calls.
- Also align protected region size as required in CENC spec.

Issue #77

Change-Id: I533d92ada3cd80933b532b9c3a1cca105ba66f8e
 2016-03-30 17:22:13 -07:00
Bei Li e39c3572af Add support for "AES 128-bit Cipher Block Chaining (CBC-128) Encryption" 
- Part 1.

- Add packager command line argument "protection_scheme" to specify
  protection scheme. Plumb through packager code to enable CBC
  encryption/decryption.
- Add scheme type "cbc1" to sinf.
- Refactor AES encryptor and decryptor.
- Need more work in the subsample handling.

Issue #77

Change-Id: I3a9304d89adf5efbfb226b6e805a3077b6cb8c68
 2016-03-17 16:51:04 -07:00