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SignatureType » History » Version 9

Junxiao Shi, 04/16/2026 08:35 PM
https://github.com/Quarmire/ndn-rs/commit/ce9000c1d48433690095ae1b13ec1138c349bef4

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# SignatureType
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The following table defines the currently assigned values for the SignatureType element in NDN Interest and Data packets.





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SignatureType         | Value (dec) | Description | Reference





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----------------------|-------------|-------------|----------





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Sha256                |  0          | Integrity protection using a SHA-256 digest | [DigestSha256](https://named-data.net/doc/NDN-packet-spec/current/signature.html#digestsha256)





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Sha256WithRsa         |  1          | Integrity and provenance protection using an RSA signature over a SHA-256 digest | [SignatureSha256WithRsa](https://named-data.net/doc/NDN-packet-spec/current/signature.html#signaturesha256withrsa)





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*(reserved)*          |  2          | Reserved for future assignments |





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Sha256WithEcdsa       |  3          | Integrity and provenance protection using an ECDSA signature over a SHA-256 digest | [SignatureSha256WithEcdsa](https://named-data.net/doc/NDN-packet-spec/current/signature.html#signaturesha256withecdsa)





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HmacSha256            |  4          | Integrity and provenance protection using a SHA-256 hash-based message authentication code | [SignatureHmacWithSha256](https://named-data.net/doc/NDN-packet-spec/current/signature.html#signaturehmacwithsha256)





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Ed25519               |  5          | Integrity and provenance protection using an Ed25519 signature | [SignatureEd25519](https://named-data.net/doc/NDN-packet-spec/current/signature.html#signatureed25519)





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Blake3                |  6          | Integrity protection using a BLAKE3 digest | [DigestBlake3](https://quarmire.github.io/ndn-rs/wiki/reference/blake3-signature-spec.html#1-digestblake3)





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Blake3Keyed           |  7          | Integrity and provenance protection using a BLAKE3 digest with 32-byte shared secret | [SignatureBlake3Keyed](https://quarmire.github.io/ndn-rs/wiki/reference/blake3-signature-spec.html#2-signatureblake3keyed)





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*(reserved)*          | 8-199       | Reserved for future assignments |





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Null                  |  200        | Empty signature for testing and experimentation | [[NullSignature]]





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## References





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https://named-data.net/doc/NDN-packet-spec/current/signature.html#signaturetype