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Vol. 1 · Ed. 2026
CyberGlossary
日本語
Entry № 829

Noise Protocol Framework

Noise Protocol Framework とは何ですか?

Noise Protocol FrameworkA composable framework by Trevor Perrin for building modern, formally analyzable secure channel protocols out of Diffie-Hellman, HKDF, and AEAD — the cryptographic core of WireGuard, Signal's I/O Pipe, and many newer protocols.

The Noise Protocol Framework, designed by Trevor Perrin and now standardized at noiseprotocol.org, is a meta-spec for building secure-channel handshakes from a small, well-understood set of primitives: an elliptic-curve Diffie-Hellman function (typically X25519), a hash (typically SHA-256 or BLAKE2s), an AEAD (typically AES-GCM or ChaCha20-Poly1305), and HKDF-style symmetric mixing. A Noise protocol is identified by a pattern (e.g. `Noise_IK_25519_ChaChaPoly_BLAKE2s`) describing exactly which handshake messages flow in which direction and which pre-shared knowledge each side starts with. Standard patterns cover one-way (`N`), interactive (`XX`, `IK`, `XK`, `NK`), and post-quantum hybrid variants. Noise is the cryptographic core of WireGuard (`Noise_IK_25519_ChaChaPoly_BLAKE2s`), Signal's I/O Pipe, the Lightning Network's BOLT-8, and many newer protocols that want modern, formally analyzable handshakes without inventing custom cryptography. Formal verification work (Bhargavan et al., Donenfeld) and the framework's design constraints make it a popular choice when TLS is too heavy or too flexible.

● 例

  1. 01

    WireGuard uses `Noise_IK_25519_ChaChaPoly_BLAKE2s` for its one-round-trip mutual authentication between peers with known long-term static keys.

  2. 02

    A peer-to-peer protocol uses Noise XX over QUIC to handshake without exposing peer identities to passive observers.

● よくある質問

Noise Protocol Framework とは何ですか?

A composable framework by Trevor Perrin for building modern, formally analyzable secure channel protocols out of Diffie-Hellman, HKDF, and AEAD — the cryptographic core of WireGuard, Signal's I/O Pipe, and many newer protocols. サイバーセキュリティの 暗号 カテゴリに属します。

Noise Protocol Framework とはどういう意味ですか?

A composable framework by Trevor Perrin for building modern, formally analyzable secure channel protocols out of Diffie-Hellman, HKDF, and AEAD — the cryptographic core of WireGuard, Signal's I/O Pipe, and many newer protocols.

Noise Protocol Framework はどのように機能しますか?

The Noise Protocol Framework, designed by Trevor Perrin and now standardized at noiseprotocol.org, is a meta-spec for building secure-channel handshakes from a small, well-understood set of primitives: an elliptic-curve Diffie-Hellman function (typically X25519), a hash (typically SHA-256 or BLAKE2s), an AEAD (typically AES-GCM or ChaCha20-Poly1305), and HKDF-style symmetric mixing. A Noise protocol is identified by a pattern (e.g. `Noise_IK_25519_ChaChaPoly_BLAKE2s`) describing exactly which handshake messages flow in which direction and which pre-shared knowledge each side starts with. Standard patterns cover one-way (`N`), interactive (`XX`, `IK`, `XK`, `NK`), and post-quantum hybrid variants. Noise is the cryptographic core of WireGuard (`Noise_IK_25519_ChaChaPoly_BLAKE2s`), Signal's I/O Pipe, the Lightning Network's BOLT-8, and many newer protocols that want modern, formally analyzable handshakes without inventing custom cryptography. Formal verification work (Bhargavan et al., Donenfeld) and the framework's design constraints make it a popular choice when TLS is too heavy or too flexible.

Noise Protocol Framework からどのように防御しますか?

Noise Protocol Framework に対する防御は通常、上記の定義で述べたとおり、技術的統制と運用上の実践を組み合わせます。

Noise Protocol Framework の別名は何ですか?

一般的な別名: Noise framework, Noise handshake。

● 関連用語