1 files changed, 67 insertions, 0 deletions

diff --git a/src/mbedTLS++/RsaPrivateKey.h b/src/mbedTLS++/RsaPrivateKey.h
new file mode 100644
index 000000000..7be0152b7
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+++ b/src/mbedTLS++/RsaPrivateKey.h
@@ -0,0 +1,67 @@
+
+// RsaPrivateKey.h
+
+// Declares the cRsaPrivateKey class representing a private key for RSA operations.
+
+
+
+
+
+#pragma once
+
+#include "CtrDrbgContext.h"
+#include "mbedtls/rsa.h"
+
+
+
+
+
+/** Encapsulates an RSA private key used in PKI cryptography */
+class cRsaPrivateKey
+{
+	friend class cSslContext;
+
+public:
+	/** Creates a new empty object, the key is not assigned */
+	cRsaPrivateKey(void);
+
+	/** Deep-copies the key from a_Other */
+	cRsaPrivateKey(const cRsaPrivateKey & a_Other);
+
+	~cRsaPrivateKey();
+
+	/** Generates a new key within this object, with the specified size in bits.
+	Returns true on success, false on failure. */
+	bool Generate(unsigned a_KeySizeBits = 1024);
+
+	/** Returns the public key part encoded in ASN1 DER encoding */
+	AString GetPubKeyDER(void);
+
+	/** Decrypts the data using RSAES-PKCS#1 algorithm.
+	Both a_EncryptedData and a_DecryptedData must be at least <KeySizeBytes> bytes large.
+	Returns the number of bytes decrypted, or negative number for error. */
+	int Decrypt(const Byte * a_EncryptedData, size_t a_EncryptedLength, Byte * a_DecryptedData, size_t a_DecryptedMaxLength);
+
+	/** Encrypts the data using RSAES-PKCS#1 algorithm.
+	Both a_EncryptedData and a_DecryptedData must be at least <KeySizeBytes> bytes large.
+	Returns the number of bytes decrypted, or negative number for error. */
+	int Encrypt(const Byte * a_PlainData, size_t a_PlainLength, Byte * a_EncryptedData, size_t a_EncryptedMaxLength);
+
+protected:
+	/** The mbedTLS key context */
+	mbedtls_rsa_context m_Rsa;
+
+	/** The random generator used for generating the key and encryption / decryption */
+	cCtrDrbgContext m_CtrDrbg;
+
+
+	/** Returns the internal context ptr. Only use in mbedTLS API calls. */
+	mbedtls_rsa_context * GetInternal(void) { return &m_Rsa; }
+} ;
+
+typedef std::shared_ptr<cRsaPrivateKey> cRsaPrivateKeyPtr;
+
+
+
+
+