Inheritance diagram for StubCrypto:

Collaboration diagram for StubCrypto:

Public Member Functions
bool	sha256 (const uint8_t , size_t, uint8_t ) override
	Compute SHA-256 over a contiguous data buffer.
bool	sha512 (const uint8_t , size_t, uint8_t ) override
	Compute SHA-512 over a contiguous data buffer.
uint16_t	aesCbcEncrypt (const uint8_t , uint16_t, uint8_t , const uint8_t , uint8_t, uint8_t , bool) override
	AES-CBC encrypt.
uint16_t	aesCbcDecrypt (uint8_t , uint16_t, uint8_t , const uint8_t , uint8_t, uint8_t , bool) override
	AES-CBC decrypt.
bool	ecdh (const uint8_t , const uint8_t , uint8_t *, CW_Curve) override
	ECDH shared secret computation.
bool	makeKey (uint8_t , uint8_t , CW_Curve) override
	Generate a new EC key pair.
bool	random (uint8_t *, unsigned) override
	Fill a buffer with cryptographically random bytes.
bool	ecdsaVerify (const uint8_t , const uint8_t , size_t, const uint8_t *, CW_Curve) override
	Verify an ECDSA signature (raw r\|\|s, 64 bytes) against a message hash.
Public Member Functions inherited from CW_CryptoProvider
virtual	~CW_CryptoProvider ()

Detailed Description

Definition at line 82 of file fuzz_der.cpp.

Member Function Documentation

◆ aesCbcDecrypt()

uint16_t StubCrypto::aesCbcDecrypt	(	uint8_t *	in,
		uint16_t	len,
		uint8_t *	out,
		const uint8_t *	key,
		uint8_t	keyLen,
		uint8_t *	iv,
		bool	bitPadding )

inlineoverridevirtual

AES-CBC decrypt.

Parameters

[in]	in	Ciphertext input buffer (non-const; may be modified internally).
[in]	len	Length of the ciphertext.
[out]	out	Plaintext output buffer.
[in]	key	AES key bytes.
[in]	keyLen	AES key length in bytes.
[in,out]	iv	16-byte IV used as decrypt IV.
[in]	bitPadding	true = Bit padding removal; false = Null padding (no removal).

Returns: Length of the plaintext written to out.

Implements CW_CryptoProvider.

Definition at line 89 of file fuzz_der.cpp.

◆ aesCbcEncrypt()

uint16_t StubCrypto::aesCbcEncrypt	(	const uint8_t *	in,
		uint16_t	len,
		uint8_t *	out,
		const uint8_t *	key,
		uint8_t	keyLen,
		uint8_t *	iv,
		bool	bitPadding )

inlineoverridevirtual

AES-CBC encrypt.

Parameters

[in]	in	Plaintext input buffer.
[in]	len	Length of the plaintext.
[out]	out	Ciphertext output buffer (must be large enough for padding).
[in]	key	AES key bytes.
[in]	keyLen	AES key length in bytes (16, 24, or 32).
[in,out]	iv	16-byte IV; updated to last cipher block on return.
[in]	bitPadding	true = ISO/IEC 9797-1 Method 2 (Bit) padding; false = Null padding (no padding added).

Returns: Length of the ciphertext written to out.

Implements CW_CryptoProvider.

Definition at line 86 of file fuzz_der.cpp.

◆ ecdh()

bool StubCrypto::ecdh	(	const uint8_t *	pubKey,
		const uint8_t *	privKey,
		uint8_t *	secret,
		CW_Curve	curve )

inlineoverridevirtual

ECDH shared secret computation.

Parameters

[in]	pubKey	Remote public key (64 bytes, X\|\|Y, no 0x04 prefix).
[in]	privKey	Local private key (32 bytes).
[out]	secret	32-byte shared secret output.
[in]	curve	Curve identifier (CW_CURVE_SECP256R1 or CW_CURVE_SECP256K1).

Returns: true on success, false otherwise.

Implements CW_CryptoProvider.

Definition at line 92 of file fuzz_der.cpp.

◆ ecdsaVerify()

bool StubCrypto::ecdsaVerify	(	const uint8_t *	pubKey64,
		const uint8_t *	hash,
		size_t	hashLen,
		const uint8_t *	sig,
		CW_Curve	curve )

inlineoverridevirtual

Verify an ECDSA signature (raw r||s, 64 bytes) against a message hash.

Parameters

[in]	pubKey64	64-byte public key (X\|\|Y, no 0x04 prefix).
[in]	hash	Message hash buffer.
[in]	hashLen	Length of the hash in bytes.
[in]	sig	64-byte raw signature (r[32]\|\|s[32]).
[in]	curve	Curve identifier for the verification operation.

Returns: true if the signature is valid, false otherwise.

Implements CW_CryptoProvider.

Definition at line 97 of file fuzz_der.cpp.

◆ makeKey()

bool StubCrypto::makeKey	(	uint8_t *	pubKey,
		uint8_t *	privKey,
		CW_Curve	curve )

inlineoverridevirtual

Generate a new EC key pair.

Parameters

[out]	pubKey	64-byte public key output (X\|\|Y, no prefix).
[out]	privKey	32-byte private key output.
[in]	curve	Curve identifier (CW_CURVE_SECP256R1 or CW_CURVE_SECP256K1).

Returns: true on success, false otherwise.

Implements CW_CryptoProvider.

Definition at line 94 of file fuzz_der.cpp.

◆ random()

bool StubCrypto::random	(	uint8_t *	dest,
		unsigned	size )

inlineoverridevirtual

Fill a buffer with cryptographically random bytes.

Parameters

[out]	dest	Buffer to fill.
[in]	size	Number of bytes to generate.

Returns: true on success, false otherwise.

Implements CW_CryptoProvider.

Definition at line 96 of file fuzz_der.cpp.

◆ sha256()

bool StubCrypto::sha256	(	const uint8_t *	data,
		size_t	len,
		uint8_t *	out )

inlineoverridevirtual

Compute SHA-256 over a contiguous data buffer.

Parameters

[in]	data	Input buffer.
[in]	len	Number of bytes to hash.
[out]	out	32-byte output buffer.

Returns: true on success, false if the underlying hash accelerator faults.

Implements CW_CryptoProvider.

Definition at line 84 of file fuzz_der.cpp.

◆ sha512()

bool StubCrypto::sha512	(	const uint8_t *	data,
		size_t	len,
		uint8_t *	out )

inlineoverridevirtual

Compute SHA-512 over a contiguous data buffer.

Parameters

[in]	data	Input buffer.
[in]	len	Number of bytes to hash.
[out]	out	64-byte output buffer.

Returns: true on success, false if the underlying hash accelerator faults.

Implements CW_CryptoProvider.

Definition at line 85 of file fuzz_der.cpp.

The documentation for this class was generated from the following file:

src/cryptnox-sdk-cpp/fuzz/fuzz_der.cpp

Public Member Functions

Detailed Description

Member Function Documentation

◆ aesCbcDecrypt()

◆ aesCbcEncrypt()

◆ ecdh()

◆ ecdsaVerify()

◆ makeKey()

◆ random()

◆ sha256()

◆ sha512()