Struct SignatureAlgorithmBuilder

pub struct SignatureAlgorithmBuilder;

Builder for constructing signature algorithm instances.

用于构建签名算法实例的构建器。

Usage Pattern | 使用模式

use seal_crypto_wrapper::algorithms::asymmetric::signature::SignatureAlgorithm;

// Traditional algorithms
let ed25519 = SignatureAlgorithm::build().ed25519();
let ecdsa = SignatureAlgorithm::build().ecdsa_p256();

// Post-quantum algorithms
let dilithium2 = SignatureAlgorithm::build().dilithium2();
let dilithium3 = SignatureAlgorithm::build().dilithium3();
let dilithium5 = SignatureAlgorithm::build().dilithium5();

Algorithm Selection Guidelines | 算法选择指南

Consider these factors when choosing:

• Performance Requirements: Ed25519 > ECDSA P-256 > Dilithium
• Signature Size: Ed25519 ≈ ECDSA P-256 << Dilithium
• Quantum Resistance: Only Dilithium provides quantum resistance
• Standardization: All algorithms are well-standardized

选择时考虑这些因素：

• 性能要求: Ed25519 > ECDSA P-256 > Dilithium
• 签名大小: Ed25519 ≈ ECDSA P-256 << Dilithium
• 量子抗性: 只有 Dilithium 提供量子抗性
• 标准化: 所有算法都经过良好标准化

Implementations

impl SignatureAlgorithmBuilder

pub fn dilithium2(self) -> SignatureAlgorithm

Selects Dilithium-2 post-quantum signature algorithm.

选择 Dilithium-2 后量子签名算法。

Properties | 属性

• Security Level: 128-bit (NIST Category 2)
• Public Key: ~1.3KB
• Private Key: ~2.5KB
• Signature: ~2.4KB
• Quantum Safe: Yes

Performance | 性能

• Key Generation: ~0.1ms
• Signing: ~0.2ms
• Verification: ~0.1ms

Use Cases | 使用场景

Best choice for most post-quantum signature applications. 大多数后量子签名应用的最佳选择。

pub fn dilithium3(self) -> SignatureAlgorithm

Selects Dilithium-3 post-quantum signature algorithm.

选择 Dilithium-3 后量子签名算法。

Properties | 属性

• Security Level: 192-bit (NIST Category 3)
• Public Key: ~2KB
• Private Key: ~4KB
• Signature: ~3.3KB
• Quantum Safe: Yes

Use Cases | 使用场景

For applications requiring higher security than 128-bit level. 用于需要高于 128 位级别安全性的应用。

pub fn dilithium5(self) -> SignatureAlgorithm

Selects Dilithium-5 post-quantum signature algorithm.

选择 Dilithium-5 后量子签名算法。

Properties | 属性

• Security Level: 256-bit (NIST Category 5)
• Public Key: ~2.6KB
• Private Key: ~4.9KB
• Signature: ~4.6KB
• Quantum Safe: Yes

Use Cases | 使用场景

Maximum security for the most sensitive applications. 最敏感应用的最大安全性。

pub fn ed25519(self) -> SignatureAlgorithm

Selects Ed25519 signature algorithm.

选择 Ed25519 签名算法。

Properties | 属性

• Security Level: 128-bit
• Public Key: 32 bytes
• Private Key: 32 bytes
• Signature: 64 bytes
• Quantum Safe: No

Advantages | 优势

• High Performance: Fastest signature algorithm

• Deterministic: Same message always produces same signature

• Small Keys: Compact key and signature sizes

• No Hash Required: Built-in message hashing

• 高性能: 最快的签名算法

• 确定性: 相同消息总是产生相同签名

• 小密钥: 紧凑的密钥和签名大小

• 无需哈希: 内置消息哈希

Use Cases | 使用场景

Ideal for high-performance applications not requiring quantum resistance. 适用于不需要量子抗性的高性能应用。

pub fn ecdsa_p256(self) -> SignatureAlgorithm

Selects ECDSA P-256 signature algorithm.

选择 ECDSA P-256 签名算法。

Properties | 属性

• Security Level: 128-bit
• Public Key: 64 bytes (uncompressed)
• Private Key: 32 bytes
• Signature: ~64 bytes (variable)
• Quantum Safe: No

Advantages | 优势

• Wide Support: Extensively supported across platforms

• Standards Compliance: NIST FIPS 186-4, RFC 6090

• Interoperability: Compatible with many systems

• Good Performance: Efficient implementation

• 广泛支持: 跨平台广泛支持

• 标准合规性: NIST FIPS 186-4, RFC 6090

• 互操作性: 与许多系统兼容

• 良好性能: 高效实现

Use Cases | 使用场景

Best for applications requiring standards compliance and interoperability. 最适合需要标准合规性和互操作性的应用。