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DRM Pluging uses CDM core's generic crypto API.

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[ Merge of http://go/wvgerrit/173170 ]

This CL updates the Widevine's Android DRM plugin to use the generic
crypto operations provided by CDM core rather than its own
implementation.

Bug: 274984456
Test: atest WvtsDeviceTestCases
Change-Id: I94e1c92c7da577aad5ec43bd3bf0bb380b607b80
This commit is contained in:
Alex Dale
2023-05-01 11:08:32 -07:00
parent 37f125a491
commit 628d1ac38c
4 changed files with 199 additions and 356 deletions
Download Patch File Download Diff File Expand all files Collapse all files

51
libwvdrmengine/mediadrm/include/WVGenericCryptoInterface.h
View File

@@ -21,48 +21,6 @@ class WVGenericCryptoInterface {
WVGenericCryptoInterface() {}
virtual ~WVGenericCryptoInterface() {}
virtual OEMCryptoResult selectKey(const OEMCrypto_SESSION session,
const uint8_t* key_id,
size_t key_id_length) {
return OEMCrypto_SelectKey(session, key_id, key_id_length,
OEMCrypto_CipherMode_CBCS);
}
virtual OEMCryptoResult encrypt(OEMCrypto_SESSION session,
const uint8_t* in_buffer,
size_t buffer_length, const uint8_t* iv,
OEMCrypto_Algorithm algorithm,
uint8_t* out_buffer) {
return OEMCrypto_Generic_Encrypt_V17(session, in_buffer, buffer_length, iv,
algorithm, out_buffer);
}
virtual OEMCryptoResult decrypt(OEMCrypto_SESSION session,
const uint8_t* in_buffer,
size_t buffer_length, const uint8_t* iv,
OEMCrypto_Algorithm algorithm,
uint8_t* out_buffer) {
return OEMCrypto_Generic_Decrypt_V17(session, in_buffer, buffer_length, iv,
algorithm, out_buffer);
}
virtual OEMCryptoResult sign(OEMCrypto_SESSION session,
const uint8_t* in_buffer, size_t buffer_length,
OEMCrypto_Algorithm algorithm,
uint8_t* signature, size_t* signature_length) {
return OEMCrypto_Generic_Sign_V17(session, in_buffer, buffer_length, algorithm,
signature, signature_length);
}
virtual OEMCryptoResult verify(OEMCrypto_SESSION session,
const uint8_t* in_buffer, size_t buffer_length,
OEMCrypto_Algorithm algorithm,
const uint8_t* signature,
size_t signature_length) {
return OEMCrypto_Generic_Verify_V17(session, in_buffer, buffer_length,
algorithm, signature, signature_length);
}
virtual OEMCryptoResult signRSA(const uint8_t* wrapped_rsa_key,
size_t wrapped_rsa_key_length,
const uint8_t* message, size_t message_length,
@@ -76,15 +34,6 @@ class WVGenericCryptoInterface {
wrapped_rsa_key, wrapped_rsa_key_length);
}
virtual OEMCryptoResult generateRSASignature(
OEMCrypto_SESSION session, const uint8_t* message, size_t message_length,
uint8_t* signature, size_t* signature_length,
RSA_Padding_Scheme padding_scheme) {
return OEMCrypto_GenerateRSASignature(session, message, message_length,
signature, signature_length,
padding_scheme);
}
private:
DISALLOW_EVIL_CONSTRUCTORS(WVGenericCryptoInterface);
};