| /* |
| * Copyright (C) 2014 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef WebCryptoKeyAlgorithmParams_h |
| #define WebCryptoKeyAlgorithmParams_h |
| |
| #include "WebCommon.h" |
| #include "WebCryptoAlgorithm.h" |
| #include "WebVector.h" |
| |
| #if INSIDE_BLINK |
| #include "platform/heap/Handle.h" |
| #endif |
| |
| namespace blink { |
| |
| // Interface used for serializing WebCryptoKeyAlgorithmParams to a javascript |
| // dictionary. |
| class WebCryptoKeyAlgorithmDictionary { |
| #if INSIDE_BLINK |
| STACK_ALLOCATED(); |
| #endif |
| public: |
| virtual ~WebCryptoKeyAlgorithmDictionary() { } |
| |
| virtual void setString(const char*, const char*) = 0; |
| virtual void setUint(const char*, unsigned) = 0; |
| virtual void setAlgorithm(const char*, const WebCryptoAlgorithm&) = 0; |
| virtual void setUint8Array(const char*, const WebVector<unsigned char>&) = 0; |
| }; |
| |
| enum WebCryptoKeyAlgorithmParamsType { |
| WebCryptoKeyAlgorithmParamsTypeNone, |
| WebCryptoKeyAlgorithmParamsTypeHmac, |
| WebCryptoKeyAlgorithmParamsTypeAes, |
| WebCryptoKeyAlgorithmParamsTypeRsaHashed, |
| WebCryptoKeyAlgorithmParamsTypeEc, |
| }; |
| |
| class WebCryptoKeyAlgorithmParams { |
| public: |
| virtual ~WebCryptoKeyAlgorithmParams() { } |
| virtual WebCryptoKeyAlgorithmParamsType type() const |
| { |
| return WebCryptoKeyAlgorithmParamsTypeNone; |
| } |
| |
| virtual void writeToDictionary(WebCryptoKeyAlgorithmDictionary*) const = 0; |
| }; |
| |
| class WebCryptoAesKeyAlgorithmParams : public WebCryptoKeyAlgorithmParams { |
| public: |
| explicit WebCryptoAesKeyAlgorithmParams(unsigned short lengthBits) |
| : m_lengthBits(lengthBits) |
| { |
| } |
| |
| unsigned short lengthBits() const |
| { |
| return m_lengthBits; |
| } |
| |
| virtual WebCryptoKeyAlgorithmParamsType type() const |
| { |
| return WebCryptoKeyAlgorithmParamsTypeAes; |
| } |
| |
| virtual void writeToDictionary(WebCryptoKeyAlgorithmDictionary* dict) const |
| { |
| dict->setUint("length", m_lengthBits); |
| } |
| |
| private: |
| unsigned short m_lengthBits; |
| }; |
| |
| class WebCryptoHmacKeyAlgorithmParams : public WebCryptoKeyAlgorithmParams { |
| public: |
| WebCryptoHmacKeyAlgorithmParams(const WebCryptoAlgorithm& hash, unsigned lengthBits) |
| : m_hash(hash) |
| , m_lengthBits(lengthBits) |
| { |
| } |
| |
| const WebCryptoAlgorithm& hash() const |
| { |
| return m_hash; |
| } |
| |
| unsigned lengthBits() const |
| { |
| return m_lengthBits; |
| } |
| |
| virtual WebCryptoKeyAlgorithmParamsType type() const |
| { |
| return WebCryptoKeyAlgorithmParamsTypeHmac; |
| } |
| |
| virtual void writeToDictionary(WebCryptoKeyAlgorithmDictionary* dict) const |
| { |
| dict->setAlgorithm("hash", m_hash); |
| dict->setUint("length", m_lengthBits); |
| } |
| |
| private: |
| WebCryptoAlgorithm m_hash; |
| unsigned m_lengthBits; |
| }; |
| |
| class WebCryptoRsaHashedKeyAlgorithmParams : public WebCryptoKeyAlgorithmParams { |
| public: |
| WebCryptoRsaHashedKeyAlgorithmParams(unsigned modulusLengthBits, const unsigned char* publicExponent, unsigned publicExponentSize, const WebCryptoAlgorithm& hash) |
| : m_modulusLengthBits(modulusLengthBits) |
| , m_publicExponent(publicExponent, publicExponentSize) |
| , m_hash(hash) |
| { |
| } |
| |
| unsigned modulusLengthBits() const |
| { |
| return m_modulusLengthBits; |
| } |
| |
| const WebVector<unsigned char>& publicExponent() const |
| { |
| return m_publicExponent; |
| } |
| |
| const WebCryptoAlgorithm& hash() const |
| { |
| return m_hash; |
| } |
| |
| virtual WebCryptoKeyAlgorithmParamsType type() const |
| { |
| return WebCryptoKeyAlgorithmParamsTypeRsaHashed; |
| } |
| |
| virtual void writeToDictionary(WebCryptoKeyAlgorithmDictionary* dict) const |
| { |
| dict->setAlgorithm("hash", m_hash); |
| dict->setUint("modulusLength", m_modulusLengthBits); |
| dict->setUint8Array("publicExponent", m_publicExponent); |
| } |
| |
| private: |
| unsigned m_modulusLengthBits; |
| WebVector<unsigned char> m_publicExponent; |
| WebCryptoAlgorithm m_hash; |
| }; |
| |
| class WebCryptoEcKeyAlgorithmParams : public WebCryptoKeyAlgorithmParams { |
| public: |
| explicit WebCryptoEcKeyAlgorithmParams(WebCryptoNamedCurve namedCurve) |
| : m_namedCurve(namedCurve) |
| { |
| } |
| |
| WebCryptoNamedCurve namedCurve() const |
| { |
| return m_namedCurve; |
| } |
| |
| virtual WebCryptoKeyAlgorithmParamsType type() const |
| { |
| return WebCryptoKeyAlgorithmParamsTypeEc; |
| } |
| |
| virtual void writeToDictionary(WebCryptoKeyAlgorithmDictionary* dict) const |
| { |
| switch (m_namedCurve) { |
| case WebCryptoNamedCurveP256: |
| dict->setString("namedCurve", "P-256"); |
| break; |
| case WebCryptoNamedCurveP384: |
| dict->setString("namedCurve", "P-384"); |
| break; |
| case WebCryptoNamedCurveP521: |
| dict->setString("namedCurve", "P-521"); |
| break; |
| } |
| } |
| |
| private: |
| const WebCryptoNamedCurve m_namedCurve; |
| }; |
| |
| } // namespace blink |
| |
| #endif |