AuroraSupport/AuroraRuntime
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[*] Improve PKCS1 OAEP support

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This commit is contained in:
Reece Wilson 2024-02-19 11:15:10 +00:00
parent 600c7b68dc
commit 0461b54045
6 changed files with 48 additions and 8 deletions
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6
Include/Aurora/Crypto/RSA/IRSAPrivate.hpp
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@ -21,6 +21,12 @@ namespace Aurora::Crypto::RSA
EPaddingType type, EPaddingType type,
Memory::ByteBuffer &out) = 0; Memory::ByteBuffer &out) = 0;
// PKCS1 OAEP
virtual bool DecryptEx(const Memory::MemoryViewRead &payload,
EPaddingType type,
Aurora::Hashing::EHashType method,
Memory::ByteBuffer &out) = 0;
virtual AuSPtr<IRSAPublic> ToPublic() = 0; virtual AuSPtr<IRSAPublic> ToPublic() = 0;
virtual bool ToKey(const RSAMeta &meta, Memory::ByteBuffer &out) = 0; virtual bool ToKey(const RSAMeta &meta, Memory::ByteBuffer &out) = 0;

8
Include/Aurora/Crypto/RSA/IRSAPublic.hpp
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@ -9,7 +9,7 @@
namespace Aurora::Crypto::RSA namespace Aurora::Crypto::RSA
{ {
// Rememeber: there is no such thing as public decryption // Remember: there is no such thing as public decryption
struct IRSAPublic struct IRSAPublic
{ {
virtual bool Verify(const Memory::MemoryViewRead &plainText, virtual bool Verify(const Memory::MemoryViewRead &plainText,
@ -21,6 +21,12 @@ namespace Aurora::Crypto::RSA
EPaddingType type, EPaddingType type,
Memory::ByteBuffer &out) = 0; Memory::ByteBuffer &out) = 0;
// PKCS1 OAEP
virtual bool EncryptEx(const Memory::MemoryViewRead &plainText,
EPaddingType type,
Aurora::Hashing::EHashType method,
Memory::ByteBuffer &out) = 0;
virtual bool ToKey(ERSAKeyType type, Memory::ByteBuffer &out) = 0; virtual bool ToKey(ERSAKeyType type, Memory::ByteBuffer &out) = 0;
}; };
} }

11
Source/Crypto/RSA/RSAPrivate.cpp
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@ -105,6 +105,14 @@ namespace Aurora::Crypto::RSA
bool PrivateRSA::Decrypt(const AuMemoryViewRead &payload, bool PrivateRSA::Decrypt(const AuMemoryViewRead &payload,
EPaddingType type, EPaddingType type,
AuByteBuffer &out) AuByteBuffer &out)
{
return DecryptEx(payload, type, AuHashing::kEHashTypeInvalid, out);
}
bool PrivateRSA::DecryptEx(const Memory::MemoryViewRead &payload,
EPaddingType type,
Aurora::Hashing::EHashType method,
Memory::ByteBuffer &out)
{ {
if (!payload.HasMemory()) if (!payload.HasMemory())
{ {
@ -119,6 +127,7 @@ namespace Aurora::Crypto::RSA
return false; return false;
} }
bool bAnnoying = padding == LTC_PKCS_1_OAEP;
const int prng_idx = padding == LTC_PKCS_1_PSS ? ::Crypto::gPrngYarrow : 0; const int prng_idx = padding == LTC_PKCS_1_PSS ? ::Crypto::gPrngYarrow : 0;
if (prng_idx < 0) if (prng_idx < 0)
{ {
@ -140,7 +149,7 @@ namespace Aurora::Crypto::RSA
payload.length, payload.length,
out.writePtr, &len, out.writePtr, &len,
NULL, 0, NULL, 0,
0, 0, // hash? excuse me? bAnnoying ? ::Crypto::HashMethodToId(method) : 0, -1,
padding, padding,
&stat, &stat,
&this->key_); &this->key_);

5
Source/Crypto/RSA/RSAPrivate.hpp
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@ -23,6 +23,11 @@ namespace Aurora::Crypto::RSA
EPaddingType type, EPaddingType type,
Memory::ByteBuffer &out) override; Memory::ByteBuffer &out) override;
bool DecryptEx(const Memory::MemoryViewRead &payload,
EPaddingType type,
Aurora::Hashing::EHashType method,
Memory::ByteBuffer &out) override;
AuSPtr<IRSAPublic> ToPublic() override; AuSPtr<IRSAPublic> ToPublic() override;
bool ToKey(const RSAMeta &meta, bool ToKey(const RSAMeta &meta,

11
Source/Crypto/RSA/RSAPublic.cpp
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@ -88,6 +88,14 @@ namespace Aurora::Crypto::RSA
bool PublicRSA::Encrypt(const Memory::MemoryViewRead &plainText, bool PublicRSA::Encrypt(const Memory::MemoryViewRead &plainText,
EPaddingType type, EPaddingType type,
AuMemory::ByteBuffer &out) AuMemory::ByteBuffer &out)
{
return EncryptEx(plainText, type, AuHashing::kEHashTypeInvalid, out);
}
bool PublicRSA::EncryptEx(const Memory::MemoryViewRead &plainText,
EPaddingType type,
Aurora::Hashing::EHashType method,
Memory::ByteBuffer &out)
{ {
int iRet {}; int iRet {};
prng_state yarrow_prng; prng_state yarrow_prng;
@ -105,6 +113,7 @@ namespace Aurora::Crypto::RSA
return false; return false;
} }
bool bAnnoying = padding == LTC_PKCS_1_OAEP;
const int prng_idx = padding == LTC_PKCS_1_PSS ? ::Crypto::gPrngYarrow : 0; const int prng_idx = padding == LTC_PKCS_1_PSS ? ::Crypto::gPrngYarrow : 0;
if (prng_idx < 0) if (prng_idx < 0)
{ {
@ -133,7 +142,7 @@ namespace Aurora::Crypto::RSA
out.writePtr, &len, out.writePtr, &len,
NULL, 0, NULL, 0,
&yarrow_prng, prng_idx, &yarrow_prng, prng_idx,
0, 0, bAnnoying ? ::Crypto::HashMethodToId(method) : 0, -1,
padding, padding,
&this->key_); &this->key_);
if (iRet != CRYPT_OK) if (iRet != CRYPT_OK)

5
Source/Crypto/RSA/RSAPublic.hpp
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@ -24,6 +24,11 @@ namespace Aurora::Crypto::RSA
EPaddingType type, EPaddingType type,
Memory::ByteBuffer &out) override; Memory::ByteBuffer &out) override;
bool EncryptEx(const Memory::MemoryViewRead &plainText,
EPaddingType type,
Aurora::Hashing::EHashType method,
Memory::ByteBuffer &out) override;
bool ToKey(ERSAKeyType type, Memory::ByteBuffer &out) override; bool ToKey(ERSAKeyType type, Memory::ByteBuffer &out) override;
private: private: