pyecsca.ec.signature module
Provides an implementation of ECDSA (Elliptic Curve Digital Signature Algorithm).
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class SignatureResult(r, s)[source]
Bases: object
ECDSA signature result (r, s).
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r:
int[source]
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s:
int[source]
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static from_DER(data)[source]
Load an ECDSA signature from ASN.1 DER data.
- Return type:
SignatureResult
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to_DER()[source]
Output this signature into ASN.1 DER.
- Return type:
bytes
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class ECDSAAction(params, hash_algo, msg)[source]
Bases: Action
An ECDSA action base class.
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params:
DomainParameters[source]
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hash_algo:
Optional[Any][source]
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msg:
bytes[source]
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inside:
bool[source]
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class ECDSASignAction(params, hash_algo, msg, privkey)[source]
Bases: ECDSAAction
ECDSA signing.
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privkey:
Mod[source]
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params:
DomainParameters[source]
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hash_algo:
Optional[Any][source]
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msg:
bytes[source]
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inside:
bool[source]
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class ECDSAVerifyAction(params, hash_algo, msg, signature, pubkey)[source]
Bases: ECDSAAction
ECDSA verification.
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signature:
SignatureResult[source]
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pubkey:
Point[source]
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params:
DomainParameters[source]
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hash_algo:
Optional[Any][source]
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msg:
bytes[source]
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inside:
bool[source]
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class Signature(mult, params, add=None, pubkey=None, privkey=None, hash_algo=None)[source]
Bases: object
EC based signature primitive (ECDSA).
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mult:
ScalarMultiplier[source]
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params:
DomainParameters[source]
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add:
Optional[AdditionFormula][source]
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pubkey:
Optional[Point][source]
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privkey:
Optional[Mod][source]
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hash_algo:
Optional[Any][source]
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property can_sign: bool[source]
Whether this instance can sign (has a private key).
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property can_verify: bool[source]
Whether this instance can verify (has a public key and add formula).
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sign_hash(digest, nonce=None)[source]
Sign already hashed data.
- Return type:
SignatureResult
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sign_data(data, nonce=None)[source]
Sign data.
- Return type:
SignatureResult
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verify_hash(signature, digest)[source]
Verify already hashed data.
- Return type:
bool
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verify_data(signature, data)[source]
Verify data.
- Return type:
bool
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class ECDSA_NONE(mult, params, add=None, pubkey=None, privkey=None)[source]
Bases: Signature
ECDSA with raw message input.
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property can_sign: bool[source]
Whether this instance can sign (has a private key).
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property can_verify: bool[source]
Whether this instance can verify (has a public key and add formula).
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sign_data(data, nonce=None)[source]
Sign data.
- Return type:
SignatureResult
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sign_hash(digest, nonce=None)[source]
Sign already hashed data.
- Return type:
SignatureResult
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verify_data(signature, data)[source]
Verify data.
- Return type:
bool
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verify_hash(signature, digest)[source]
Verify already hashed data.
- Return type:
bool
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mult:
ScalarMultiplier[source]
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params:
DomainParameters[source]
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add:
Optional[AdditionFormula][source]
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pubkey:
Optional[Point][source]
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privkey:
Optional[Mod][source]
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hash_algo:
Optional[Any][source]
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class ECDSA_SHA1(mult, params, add=None, pubkey=None, privkey=None)[source]
Bases: Signature
ECDSA with SHA1.
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property can_sign: bool[source]
Whether this instance can sign (has a private key).
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property can_verify: bool[source]
Whether this instance can verify (has a public key and add formula).
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sign_data(data, nonce=None)[source]
Sign data.
- Return type:
SignatureResult
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sign_hash(digest, nonce=None)[source]
Sign already hashed data.
- Return type:
SignatureResult
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verify_data(signature, data)[source]
Verify data.
- Return type:
bool
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verify_hash(signature, digest)[source]
Verify already hashed data.
- Return type:
bool
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mult:
ScalarMultiplier[source]
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params:
DomainParameters[source]
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add:
Optional[AdditionFormula][source]
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pubkey:
Optional[Point][source]
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privkey:
Optional[Mod][source]
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hash_algo:
Optional[Any][source]
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class ECDSA_SHA224(mult, params, add=None, pubkey=None, privkey=None)[source]
Bases: Signature
ECDSA with SHA224.
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property can_sign: bool[source]
Whether this instance can sign (has a private key).
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property can_verify: bool[source]
Whether this instance can verify (has a public key and add formula).
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sign_data(data, nonce=None)[source]
Sign data.
- Return type:
SignatureResult
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sign_hash(digest, nonce=None)[source]
Sign already hashed data.
- Return type:
SignatureResult
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verify_data(signature, data)[source]
Verify data.
- Return type:
bool
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verify_hash(signature, digest)[source]
Verify already hashed data.
- Return type:
bool
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mult:
ScalarMultiplier[source]
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params:
DomainParameters[source]
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add:
Optional[AdditionFormula][source]
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pubkey:
Optional[Point][source]
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privkey:
Optional[Mod][source]
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hash_algo:
Optional[Any][source]
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class ECDSA_SHA256(mult, params, add=None, pubkey=None, privkey=None)[source]
Bases: Signature
ECDSA with SHA256.
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property can_sign: bool[source]
Whether this instance can sign (has a private key).
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property can_verify: bool[source]
Whether this instance can verify (has a public key and add formula).
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sign_data(data, nonce=None)[source]
Sign data.
- Return type:
SignatureResult
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sign_hash(digest, nonce=None)[source]
Sign already hashed data.
- Return type:
SignatureResult
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verify_data(signature, data)[source]
Verify data.
- Return type:
bool
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verify_hash(signature, digest)[source]
Verify already hashed data.
- Return type:
bool
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mult:
ScalarMultiplier[source]
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params:
DomainParameters[source]
-
add:
Optional[AdditionFormula][source]
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pubkey:
Optional[Point][source]
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privkey:
Optional[Mod][source]
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hash_algo:
Optional[Any][source]
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class ECDSA_SHA384(mult, params, add=None, pubkey=None, privkey=None)[source]
Bases: Signature
ECDSA with SHA384.
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property can_sign: bool[source]
Whether this instance can sign (has a private key).
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property can_verify: bool[source]
Whether this instance can verify (has a public key and add formula).
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sign_data(data, nonce=None)[source]
Sign data.
- Return type:
SignatureResult
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sign_hash(digest, nonce=None)[source]
Sign already hashed data.
- Return type:
SignatureResult
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verify_data(signature, data)[source]
Verify data.
- Return type:
bool
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verify_hash(signature, digest)[source]
Verify already hashed data.
- Return type:
bool
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mult:
ScalarMultiplier[source]
-
params:
DomainParameters[source]
-
add:
Optional[AdditionFormula][source]
-
pubkey:
Optional[Point][source]
-
privkey:
Optional[Mod][source]
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hash_algo:
Optional[Any][source]
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class ECDSA_SHA512(mult, params, add=None, pubkey=None, privkey=None)[source]
Bases: Signature
ECDSA with SHA512.
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property can_sign: bool[source]
Whether this instance can sign (has a private key).
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property can_verify: bool[source]
Whether this instance can verify (has a public key and add formula).
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sign_data(data, nonce=None)[source]
Sign data.
- Return type:
SignatureResult
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sign_hash(digest, nonce=None)[source]
Sign already hashed data.
- Return type:
SignatureResult
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verify_data(signature, data)[source]
Verify data.
- Return type:
bool
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verify_hash(signature, digest)[source]
Verify already hashed data.
- Return type:
bool
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mult:
ScalarMultiplier[source]
-
params:
DomainParameters[source]
-
add:
Optional[AdditionFormula][source]
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pubkey:
Optional[Point][source]
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privkey:
Optional[Mod][source]
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hash_algo:
Optional[Any][source]
