Individual skill
implementing-digital-signatures-with-ed25519
Implements digital signatures using the Ed25519 algorithm (Curve25519), covering key-pair generation, signing, signature verification, and security tradeoffs versus RSA and ECDSA. Use when adding message or artifact signing and authentication-integrity checks to a system, or when advising on Ed25519 key properties and validation criteria.
skills/implementing-digital-signatures-with-ed25519/SKILL.md
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- Aug 31, 2026
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- Apache-2.0
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- ai-agents Repository topic
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- cybersecurity Repository topic
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- red-team Repository topic
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- cryptography Declared skill tag
- digital-signatures Declared skill tag
- ed25519 Declared skill tag
- authentication Declared skill tag
- integrity Declared skill tag
- security Derived category
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LICENSEasset · 11,255 bytesSKILL.mdcore · 3,500 bytesassets/template.mddoc · 890 bytesreferences/api-reference.mddoc · 1,712 bytesreferences/standards.mddoc · 1,314 bytesreferences/workflows.mddoc · 1,343 bytesscripts/agent.pyruns · 5,885 bytesscripts/process.pyruns · 11,192 bytes
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# Implementing Digital Signatures with Ed25519
## Overview
Ed25519 is a high-performance digital signature algorithm using the Edwards curve Curve25519. It provides 128-bit security with 64-byte signatures and 32-byte keys, offering significant advantages over RSA and ECDSA including deterministic signatures (no random nonce needed), resistance to side-channel attacks, and fast verification. This skill covers implementing Ed25519 for document signing, code signing, and API authentication.
## When to Use
- When deploying or configuring implementing digital signatures with ed25519 capabilities in your environment
- When establishing security controls aligned to compliance requirements
- When building or improving security architecture for this domain
- When conducting security assessments that require this implementation
## Prerequisites