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liboqs/docs/algorithms/kem_sidh.md
Christian Paquin 4c4342c1e9 Updated SIKE implementation with latest changes.
2020-02-26 13:38:36 -05:00

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liboqs algorithm datasheet: kem_sidh

Summary

  • Name: SIDH
  • Algorithm type: key exchange
  • Note: SIDH is as ephemeral key exchange algorithm related to the SIKE KEM (sike.org) submitted to NIST. It is NOT secure to use it with static keys.
  • Main cryptographic assumption: (supersingular) isogeny walk problem
  • Submitters' website: https://github.com/Microsoft/PQCrypto-SIDH
  • Added to liboqs by: Christian Paquin

Parameter sets

Parameter set Security model Claimed NIST security level Public key size (bytes) Secret key size (bytes) Ciphertext size (bytes) Shared secret size (bytes)
SIDH-p434 IND-CPA 1 330 28 330 110
SIDH-p434-compressed IND-CPA 1 196 28 196 110
SIDH-p503 IND-CPA 2 378 32 378 126
SIDH-p503-compressed IND-CPA 2 224 32 224 126
SIDH-p610 IND-CPA 3 462 39 462 154
SIDH-p610-compressed IND-CPA 3 273 39 273 154
SIDH-p751 IND-CPA 5 564 48 564 188
SIDH-p751-compressed IND-CPA 5 334 48 334 188

Implementation

Additional comments

No KAT are available for SIDH.