iden-q-post-quantum (Python) — generated by iqcgen 1.0.3

Do not edit these sources. They are compiled from the IdenQ Crypto IR in specs/ and regenerated with iqcgen generate. Cross-language byte parity is the property this package exists to guarantee; hand edits silently break it.

Requires: CPython 3.10-3.13 from source; the published wheel is bytecode, so one wheel per minor version.

pip install ./dist/python

Passphrase-rooted hybrid post-quantum secret encryption (cipher_payload v2)

A passphrase is stretched with Argon2id into a master key; an ML-KEM-768 keypair is derived deterministically from that master key (so nothing has to be stored or synced); encapsulating to it yields a post-quantum shared secret which is mixed with a symmetric KEK to wrap a random per-secret data key. An attacker needs the passphrase — breaking ML-KEM alone, or recording traffic today to decrypt after a quantum computer exists, does not help.

from iden_q_post_quantum import (encrypt, decrypt)
  • encrypt(plaintext: string, passphrase: string) — Encrypt a secret under a passphrase.
  • decrypt(payload: struct, passphrase: string) — Decrypt a payload with the passphrase that produced it.

Hybrid X25519 + ML-KEM-768 public-key envelope (login_envelope v1)

Seals a short credential to a recipient's static hybrid public key. Classical and post- quantum defence in depth: an interceptor who strips TLS must break BOTH X25519 and ML- KEM-768 to recover the key-encryption key, and neither alone is enough. The recipient opens it with the matching private keys.

from iden_q_post_quantum import (seal, unseal, derive_recipient_keys)
  • seal(plaintext: bytes, recipient_x_pk: bytes, recipient_mlkem_ek: bytes) — Seal a plaintext to a recipient's static hybrid public key.
  • unseal(envelope: struct, x_sk: bytes, mlkem_dk: bytes) — Open an envelope with the recipient's private keys.
  • derive_recipient_keys(seed: bytes) — Derive a recipient key set deterministically from a 96-byte seed.

Licence

IdenQ Proprietary Licence. See LICENSE — this software is licensed, not sold. Third-party components keep their own terms; see THIRD-PARTY-NOTICES.md.

Key dates

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  • Released:
Newer release available (1.2.0)

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LicenseRef-IdenQ-Proprietary
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Requires

Python <3.14, >=3.11

Provides Extra

test

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1.2.0

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