What digital signature algorithms are approved?

FIPS 186-4 approves three digital signature algorithms: DSA (Digital Signature Algorithm), RSA (Rivest-Shamir-Adleman), and ECDSA (Elliptic Curve Digital Signature Algorithm).

How does FIPS 186-4 apply to motorcycle security?

FIPS 186-4 applies to motorcycle security by providing standards for digital signatures in key authentication, firmware verification, and secure communication protocols.

What are the key length requirements?

FIPS 186-4 specifies minimum key lengths: 2048 bits for RSA, 2048-3072 bits for DSA, and 224-521 bits for ECDSA depending on the security level required.

FIPS 186-4 Digital Signature Standard

Q: What is FIPS 186-4?

FIPS 186-4 is the Digital Signature Standard that specifies approved digital signature algorithms including DSA, RSA, and ECDSA for generating and verifying digital signatures.

Federal Information Processing Standard specifying approved digital signature algorithms including DSA, RSA, and ECDSA for generating and verifying digital signatures, with applications in motorcycle key authentication, firmware verification, and secure communication protocols.

Standard Overview

Publication Date

July 2013

Status

NIST Federal Standard

Application

Digital Signatures

Scope

Cryptographic Algorithms

Digital Signature Algorithms

DSA (Digital Signature Algorithm)

FIPS-Approved Signature Algorithm

Original digital signature algorithm specified in FIPS 186

Key sizes: 2048, 3072 bits
Hash functions: SHA-224, SHA-256, SHA-384, SHA-512
Discrete logarithm problem based

RSA (Rivest-Shamir-Adleman)

Widely-Used Public Key Algorithm

RSA algorithm for digital signatures with PSS padding

Key sizes: 2048, 3072, 4096 bits
Padding schemes: PKCS #1 v1.5, PSS
Integer factorization problem based

ECDSA (Elliptic Curve DSA)

Elliptic Curve Digital Signatures

Elliptic curve variant of DSA with smaller key sizes

Curve sizes: P-224, P-256, P-384, P-521
Binary curves: B-233, B-283, B-409, B-571
Elliptic curve discrete logarithm based

Motorcycle Applications

Vehicle Security Implementations

Digital signature applications for motorcycle systems

Key authentication and verification
Firmware and software signing
Secure communication protocols

Key Generation

Cryptographic Key Generation

Secure key generation procedures and requirements

Random number generation requirements
Prime number generation and testing
Key validation and verification

Signature Verification

Digital Signature Validation

Procedures for verifying digital signatures

Signature verification algorithms
Public key validation procedures
Hash function verification

Implementation Features

Cryptographic Security

Advanced cryptographic security features and implementation requirements for FIPS 186-4 compliance.

Approved hash functions (SHA-2 family)
Secure random number generation
Key strength and validation requirements
Algorithm parameter validation
Side-channel attack resistance
Cryptographic module integration

Algorithm Implementation

Comprehensive implementation guidelines for digital signature algorithms.

Algorithm-specific implementation details
Performance optimization techniques
Memory and computational requirements
Error handling and validation
Interoperability considerations
Testing and validation procedures

Compliance and Certification

Certification requirements and compliance validation for FIPS 186-4 implementations.

CAVP (Cryptographic Algorithm Validation Program)
Implementation testing requirements
Security policy documentation
Operational environment validation
Continuous monitoring and maintenance
Standards compliance verification