947531a6a9
Merge from Widevine repo of http://go/wvgerrit/46204 Refactor utility code - split the mock, step 1 Merge from Widevine repo of http://go/wvgerrit/46205 Move some OEMCrypto types to common header - split the mock, step 2 Merge from Widevine repo of http://go/wvgerrit/46206 Split mock into two -- step 3 Merge from Widevine repo of http://go/wvgerrit/47460 Split the mock into two -- step 3.5 The CL moves several files used by oemcrypto and cdm into a common subdirectory, so that it may more easily be shared with partners. The CORE_DISALLOW_COPY_AND_ASSIGN macro was moved to its own header in the util/include directory. This CL removes some references to the mock from other code, and puts some constants and types, such as the definition of the keybox, into a header in oemcrypto. Test: tested as part of http://go/ag/4674759 bug: 76393338 Change-Id: I75b4bde7062ed8ee572c97ebc2f4da018f4be0c9
74 lines
1.9 KiB
C++
74 lines
1.9 KiB
C++
// Copyright 2018 Google LLC. All Rights Reserved. This file and proprietary
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// source code may only be used and distributed under the Widevine Master
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// License Agreement.
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//
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// Description:
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// Declaration of classes representing AES and RSA public keys used
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// for signature verification and encryption.
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//
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// AES encryption details:
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// Algorithm: AES-CBC
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//
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// RSA signature details:
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// Algorithm: RSASSA-PSS
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// Hash algorithm: SHA1
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// Mask generation function: mgf1SHA1
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// Salt length: 20 bytes
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// Trailer field: 0xbc
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//
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// RSA encryption details:
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// Algorithm: RSA-OAEP
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// Mask generation function: mgf1SHA1
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// Label (encoding paramter): empty string
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//
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#ifndef WVCDM_CORE_PRIVACY_CRYPTO_H_
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#define WVCDM_CORE_PRIVACY_CRYPTO_H_
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#include <string>
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#include "disallow_copy_and_assign.h"
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#include "wv_cdm_types.h"
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namespace wvcdm {
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class AesCbcKey {
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public:
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AesCbcKey();
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~AesCbcKey();
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bool Init(const std::string& key);
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bool Encrypt(const std::string& in, std::string* out, std::string* iv);
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private:
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std::string key_;
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CORE_DISALLOW_COPY_AND_ASSIGN(AesCbcKey);
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};
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class RsaPublicKey {
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public:
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RsaPublicKey();
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~RsaPublicKey();
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// Initializes an RsaPublicKey object using a DER encoded PKCS#1 RSAPublicKey
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bool Init(const std::string& serialized_key);
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// Encrypt a message using RSA-OAEP. Caller retains ownership of all
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// parameters. Returns true if successful, false otherwise.
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bool Encrypt(const std::string& plaintext, std::string* ciphertext);
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// Verify RSASSA-PSS signature. Caller retains ownership of all parameters.
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// Returns true if validation succeeds, false otherwise.
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bool VerifySignature(const std::string& message,
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const std::string& signature);
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private:
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std::string serialized_key_;
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CORE_DISALLOW_COPY_AND_ASSIGN(RsaPublicKey);
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};
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} // namespace wvcdm
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#endif // WVCDM_CORE_PRIVACY_CRYPTO_H_
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