import type * as HPKE from 'hpke';
/**
 * AES-128-GCM Authenticated Encryption with Associated Data (AEAD).
 *
 * Uses AES in Galois/Counter Mode with 128-bit keys.
 *
 * This is a factory function that must be passed to the {@link HPKE.CipherSuite} constructor.
 *
 * @see [HPKE AEAD Identifiers](https://datatracker.ietf.org/doc/html/draft-ietf-hpke-hpke-04.html#section-7.3)
 */
export declare const AEAD_AES_128_GCM: HPKE.AEADFactory;
/**
 * AES-256-GCM Authenticated Encryption with Associated Data (AEAD).
 *
 * Uses AES in Galois/Counter Mode with 256-bit keys.
 *
 * This is a factory function that must be passed to the {@link HPKE.CipherSuite} constructor.
 *
 * @see [HPKE AEAD Identifiers](https://datatracker.ietf.org/doc/html/draft-ietf-hpke-hpke-04.html#section-7.3)
 */
export declare const AEAD_AES_256_GCM: HPKE.AEADFactory;
/**
 * ChaCha20-Poly1305 Authenticated Encryption with Associated Data (AEAD).
 *
 * Uses ChaCha20 stream cipher with Poly1305 MAC.
 *
 * This is a factory function that must be passed to the {@link HPKE.CipherSuite} constructor.
 *
 * @see [HPKE AEAD Identifiers](https://datatracker.ietf.org/doc/html/draft-ietf-hpke-hpke-04.html#section-7.3)
 */
export declare const AEAD_ChaCha20Poly1305: HPKE.AEADFactory;
/**
 * HKDF-SHA256 key derivation function.
 *
 * A two-stage KDF using HMAC-based Extract-and-Expand as specified in RFC 5869. Uses SHA-256 as the
 * hash function with an output length (Nh) of 32 bytes.
 *
 * This is a factory function that must be passed to the {@link HPKE.CipherSuite} constructor.
 *
 * @see [HPKE KDF Identifiers](https://datatracker.ietf.org/doc/html/draft-ietf-hpke-hpke-04.html#section-7.2)
 */
export declare const KDF_HKDF_SHA256: HPKE.KDFFactory;
/**
 * HKDF-SHA384 key derivation function.
 *
 * A two-stage KDF using HMAC-based Extract-and-Expand as specified in RFC 5869. Uses SHA-384 as the
 * hash function with an output length (Nh) of 48 bytes.
 *
 * This is a factory function that must be passed to the {@link HPKE.CipherSuite} constructor.
 *
 * @see [HPKE KDF Identifiers](https://datatracker.ietf.org/doc/html/draft-ietf-hpke-hpke-04.html#section-7.2)
 */
export declare const KDF_HKDF_SHA384: HPKE.KDFFactory;
/**
 * HKDF-SHA512 key derivation function.
 *
 * A two-stage KDF using HMAC-based Extract-and-Expand as specified in RFC 5869. Uses SHA-512 as the
 * hash function with an output length (Nh) of 64 bytes.
 *
 * This is a factory function that must be passed to the {@link HPKE.CipherSuite} constructor.
 *
 * @see [HPKE KDF Identifiers](https://datatracker.ietf.org/doc/html/draft-ietf-hpke-hpke-04.html#section-7.2)
 */
export declare const KDF_HKDF_SHA512: HPKE.KDFFactory;
/**
 * SHAKE128 key derivation function.
 *
 * A one-stage KDF using the SHAKE128 extendable-output function (XOF) with an output length (Nh) of
 * 32 bytes.
 *
 * This is a factory function that must be passed to the {@link HPKE.CipherSuite} constructor.
 *
 * @see [HPKE-PQ One-Stage KDFs](https://datatracker.ietf.org/doc/html/draft-ietf-hpke-pq-05.html#section-5)
 */
export declare const KDF_SHAKE128: HPKE.KDFFactory;
/**
 * SHAKE256 key derivation function.
 *
 * A one-stage KDF using the SHAKE256 extendable-output function (XOF) with an output length (Nh) of
 * 64 bytes.
 *
 * This is a factory function that must be passed to the {@link HPKE.CipherSuite} constructor.
 *
 * @see [HPKE-PQ One-Stage KDFs](https://datatracker.ietf.org/doc/html/draft-ietf-hpke-pq-05.html#section-5)
 */
export declare const KDF_SHAKE256: HPKE.KDFFactory;
/**
 * TurboSHAKE128 key derivation function.
 *
 * A one-stage KDF using the TurboSHAKE128 extendable-output function (XOF) with an output length
 * (Nh) of 32 bytes.
 *
 * This is a factory function that must be passed to the {@link HPKE.CipherSuite} constructor.
 *
 * @see [HPKE-PQ One-Stage KDFs](https://datatracker.ietf.org/doc/html/draft-ietf-hpke-pq-05.html#section-5)
 */
export declare const KDF_TurboSHAKE128: HPKE.KDFFactory;
/**
 * TurboSHAKE256 key derivation function.
 *
 * A one-stage KDF using the TurboSHAKE256 extendable-output function (XOF) with an output length
 * (Nh) of 64 bytes.
 *
 * This is a factory function that must be passed to the {@link HPKE.CipherSuite} constructor.
 *
 * @see [HPKE-PQ One-Stage KDFs](https://datatracker.ietf.org/doc/html/draft-ietf-hpke-pq-05.html#section-5)
 */
export declare const KDF_TurboSHAKE256: HPKE.KDFFactory;
/**
 * Diffie-Hellman Key Encapsulation Mechanism using NIST P-256 curve and HKDF-SHA256.
 *
 * A Diffie-Hellman based KEM using the NIST P-256 elliptic curve (also known as secp256r1) with
 * HKDF-SHA256 for key derivation.
 *
 * This is a factory function that must be passed to the {@link HPKE.CipherSuite} constructor.
 *
 * @see [HPKE KEM Identifiers](https://datatracker.ietf.org/doc/html/draft-ietf-hpke-hpke-04.html#section-7.1)
 */
export declare const KEM_DHKEM_P256_HKDF_SHA256: HPKE.KEMFactory;
/**
 * Diffie-Hellman Key Encapsulation Mechanism using NIST P-384 curve and HKDF-SHA384.
 *
 * A Diffie-Hellman based KEM using the NIST P-384 elliptic curve (also known as secp384r1) with
 * HKDF-SHA384 for key derivation.
 *
 * This is a factory function that must be passed to the {@link HPKE.CipherSuite} constructor.
 *
 * @see [HPKE KEM Identifiers](https://datatracker.ietf.org/doc/html/draft-ietf-hpke-hpke-04.html#section-7.1)
 */
export declare const KEM_DHKEM_P384_HKDF_SHA384: HPKE.KEMFactory;
/**
 * Diffie-Hellman Key Encapsulation Mechanism using NIST P-521 curve and HKDF-SHA512.
 *
 * A Diffie-Hellman based KEM using the NIST P-521 elliptic curve (also known as secp521r1) with
 * HKDF-SHA512 for key derivation.
 *
 * This is a factory function that must be passed to the {@link HPKE.CipherSuite} constructor.
 *
 * @see [HPKE KEM Identifiers](https://datatracker.ietf.org/doc/html/draft-ietf-hpke-hpke-04.html#section-7.1)
 */
export declare const KEM_DHKEM_P521_HKDF_SHA512: HPKE.KEMFactory;
/**
 * Diffie-Hellman Key Encapsulation Mechanism using Curve25519 and HKDF-SHA256.
 *
 * A Diffie-Hellman based KEM using the X25519 elliptic curve (Curve25519 for ECDH) with HKDF-SHA256
 * for key derivation.
 *
 * This is a factory function that must be passed to the {@link HPKE.CipherSuite} constructor.
 *
 * @see [HPKE KEM Identifiers](https://datatracker.ietf.org/doc/html/draft-ietf-hpke-hpke-04.html#section-7.1)
 */
export declare const KEM_DHKEM_X25519_HKDF_SHA256: HPKE.KEMFactory;
/**
 * Diffie-Hellman Key Encapsulation Mechanism using Curve448 and HKDF-SHA512.
 *
 * A Diffie-Hellman based KEM using the X448 elliptic curve (Curve448 for ECDH) with HKDF-SHA512 for
 * key derivation.
 *
 * This is a factory function that must be passed to the {@link HPKE.CipherSuite} constructor.
 *
 * @see [HPKE KEM Identifiers](https://datatracker.ietf.org/doc/html/draft-ietf-hpke-hpke-04.html#section-7.1)
 */
export declare const KEM_DHKEM_X448_HKDF_SHA512: HPKE.KEMFactory;
/**
 * Module-Lattice-Based Key Encapsulation Mechanism (ML-KEM-512).
 *
 * A post-quantum KEM based on structured lattices (FIPS 203 / CRYSTALS-Kyber).
 *
 * This is a factory function that must be passed to the {@link HPKE.CipherSuite} constructor.
 *
 * @see [HPKE-PQ KEM Identifiers](https://datatracker.ietf.org/doc/html/draft-ietf-hpke-pq-05.html#section-3)
 */
export declare const KEM_ML_KEM_512: HPKE.KEMFactory;
/**
 * Module-Lattice-Based Key Encapsulation Mechanism (ML-KEM-768).
 *
 * A post-quantum KEM based on structured lattices (FIPS 203 / CRYSTALS-Kyber).
 *
 * This is a factory function that must be passed to the {@link HPKE.CipherSuite} constructor.
 *
 * @see [HPKE-PQ KEM Identifiers](https://datatracker.ietf.org/doc/html/draft-ietf-hpke-pq-05.html#section-3)
 */
export declare const KEM_ML_KEM_768: HPKE.KEMFactory;
/**
 * Module-Lattice-Based Key Encapsulation Mechanism (ML-KEM-1024).
 *
 * A post-quantum KEM based on structured lattices (FIPS 203 / CRYSTALS-Kyber).
 *
 * This is a factory function that must be passed to the {@link HPKE.CipherSuite} constructor.
 *
 * @see [HPKE-PQ KEM Identifiers](https://datatracker.ietf.org/doc/html/draft-ietf-hpke-pq-05.html#section-3)
 */
export declare const KEM_ML_KEM_1024: HPKE.KEMFactory;
/**
 * Hybrid KEM combining ML-KEM-768 with X25519 (MLKEM768-X25519).
 *
 * This is a factory function that must be passed to the {@link HPKE.CipherSuite} constructor.
 *
 * @see [HPKE-PQ Hybrid KEM Identifiers](https://datatracker.ietf.org/doc/html/draft-ietf-hpke-pq-05.html#section-4)
 */
export declare const KEM_MLKEM768_X25519: HPKE.KEMFactory;
/**
 * Hybrid KEM combining ML-KEM-768 with P-256 (MLKEM768-P256).
 *
 * This is a factory function that must be passed to the {@link HPKE.CipherSuite} constructor.
 *
 * @see [HPKE-PQ Hybrid KEM Identifiers](https://datatracker.ietf.org/doc/html/draft-ietf-hpke-pq-05.html#section-4)
 */
export declare const KEM_MLKEM768_P256: HPKE.KEMFactory;
/**
 * Hybrid KEM combining ML-KEM-1024 with P-384 (MLKEM1024-P384).
 *
 * This is a factory function that must be passed to the {@link HPKE.CipherSuite} constructor.
 *
 * @see [HPKE-PQ Hybrid KEM Identifiers](https://datatracker.ietf.org/doc/html/draft-ietf-hpke-pq-05.html#section-4)
 */
export declare const KEM_MLKEM1024_P384: HPKE.KEMFactory;