<commit_before>// Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
////////////////////////////////////////////////////////////////////////////////

package hybrid

import (
	"google.golang.org/protobuf/proto"
	"github.com/google/tink/go/aead"
	commonpb "github.com/google/tink/go/proto/common_go_proto"
	eciespb "github.com/google/tink/go/proto/ecies_aead_hkdf_go_proto"
	hpkepb "github.com/google/tink/go/proto/hpke_go_proto"
	tinkpb "github.com/google/tink/go/proto/tink_go_proto"
)

// This file contains pre-generated KeyTemplates for HybridEncrypt keys. One can use these templates
// to generate new Keysets.

// DHKEM_X25519_HKDF_SHA256_HKDF_SHA256_AES_128_GCM_Key_Template creates a HPKE
// key template with
//  - KEM DHKEM_X25519_HKDF_SHA256,
//  - KDF HKDF_SHA256, and
//  - AEAD AES_128_GCM.
// It adds the 5-byte Tink prefix to ciphertexts.
func DHKEM_X25519_HKDF_SHA256_HKDF_SHA256_AES_128_GCM_Key_Template() *tinkpb.KeyTemplate {
	return createHPKEKeyTemplate(
		hpkepb.HpkeKem_DHKEM_X25519_HKDF_SHA256,
		hpkepb.HpkeKdf_HKDF_SHA256,
		hpkepb.HpkeAead_AES_128_GCM,
		tinkpb.OutputPrefixType_TINK,
	)
}

// DHKEM_X25519_HKDF_SHA256_HKDF_SHA256_AES_128_GCM_Raw_Key_Template creates a
// HPKE key template with
//  - KEM DHKEM_X25519_HKDF_SHA256,
//  - KDF HKDF_SHA256, and
//  - AEAD AES_128_GCM.
// It does not add a prefix to ciphertexts.
func DHKEM_X25519_HKDF_SHA256_HKDF_SHA256_AES_128_GCM_Raw_Key_Template() *tinkpb.KeyTemplate {
	return createHPKEKeyTemplate(
		hpkepb.HpkeKem_DHKEM_X25519_HKDF_SHA256,
		hpkepb.HpkeKdf_HKDF_SHA256,
		hpkepb.HpkeAead_AES_128_GCM,
		tinkpb.OutputPrefixType_RAW,
	)
}

// DHKEM_X25519_HKDF_SHA256_HKDF_SHA256_AES_256_GCM_Key_Template creates a HPKE
// key template with
//  - KEM DHKEM_X25519_HKDF_SHA256,
//  - KDF HKDF_SHA256, and
//  - AEAD AES_256_GCM.
// It adds the 5-byte Tink prefix to ciphertexts.
func DHKEM_X25519_HKDF_SHA256_HKDF_SHA256_AES_256_GCM_Key_Template() *tinkpb.KeyTemplate {
	return createHPKEKeyTemplate(
		hpkepb.HpkeKem_DHKEM_X25519_HKDF_SHA256,
		hpkepb.HpkeKdf_HKDF_SHA256,
		hpkepb.HpkeAead_AES_256_GCM,
		tinkpb.OutputPrefixType_TINK,
	)
}

// DHKEM_X25519_HKDF_SHA256_HKDF_SHA256_AES_256_GCM_Raw_Key_Template creates a
// HPKE key template with
//  - KEM DHKEM_X25519_HKDF_SHA256,
//  - KDF HKDF_SHA256, and
//  - AEAD AES_256_GCM.
// It does not add a prefix to ciphertexts.
func DHKEM_X25519_HKDF_SHA256_HKDF_SHA256_AES_256_GCM_Raw_Key_Template() *tinkpb.KeyTemplate {
	return createHPKEKeyTemplate(
		hpkepb.HpkeKem_DHKEM_X25519_HKDF_SHA256,
		hpkepb.HpkeKdf_HKDF_SHA256,
		hpkepb.HpkeAead_AES_256_GCM,
		tinkpb.OutputPrefixType_RAW,
	)
}

// DHKEM_X25519_HKDF_SHA256_HKDF_SHA256_CHACHA20_POLY1305_Key_Template creates a HPKE
// key template with
//  - KEM DHKEM_X25519_HKDF_SHA256,
//  - KDF HKDF_SHA256, and
//  - AEAD CHACHA20_POLY1305.
// It adds the 5-byte Tink prefix to ciphertexts.
func DHKEM_X25519_HKDF_SHA256_HKDF_SHA256_CHACHA20_POLY1305_Key_Template() *tinkpb.KeyTemplate {
	return createHPKEKeyTemplate(
		hpkepb.HpkeKem_DHKEM_X25519_HKDF_SHA256,
		hpkepb.HpkeKdf_HKDF_SHA256,
		hpkepb.HpkeAead_CHACHA20_POLY1305,
		tinkpb.OutputPrefixType_TINK,
	)
}

// DHKEM_X25519_HKDF_SHA256_HKDF_SHA256_CHACHA20_POLY1305_Raw_Key_Template creates a
// HPKE key template with
//  - KEM DHKEM_X25519_HKDF_SHA256,
//  - KDF HKDF_SHA256, and
//  - AEAD CHACHA20_POLY1305.
// It does not add a prefix to ciphertexts.
func DHKEM_X25519_HKDF_SHA256_HKDF_SHA256_CHACHA20_POLY1305_Raw_Key_Template() *tinkpb.KeyTemplate {
	return createHPKEKeyTemplate(
		hpkepb.HpkeKem_DHKEM_X25519_HKDF_SHA256,
		hpkepb.HpkeKdf_HKDF_SHA256,
		hpkepb.HpkeAead_CHACHA20_POLY1305,
		tinkpb.OutputPrefixType_RAW,
	)
}

// createHPKEKeyTemplate creates a new HPKE key template with the given parameters.
func createHPKEKeyTemplate(kem hpkepb.HpkeKem, kdf hpkepb.HpkeKdf, aead hpkepb.HpkeAead, outputPrefixType tinkpb.OutputPrefixType) *tinkpb.KeyTemplate {
	format := &hpkepb.HpkeKeyFormat{
		Params: &hpkepb.HpkeParams{
			Kem:  kem,
			Kdf:  kdf,
			Aead: aead,
		},
	}
	serializedFormat, _ := proto.Marshal(format)<commit_msg>Improve readability of HPKE key template comments.<commit_after>// Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
////////////////////////////////////////////////////////////////////////////////

package hybrid

import (
	"google.golang.org/protobuf/proto"
	"github.com/google/tink/go/aead"
	commonpb "github.com/google/tink/go/proto/common_go_proto"
	eciespb "github.com/google/tink/go/proto/ecies_aead_hkdf_go_proto"
	hpkepb "github.com/google/tink/go/proto/hpke_go_proto"
	tinkpb "github.com/google/tink/go/proto/tink_go_proto"
)

// This file contains pre-generated KeyTemplates for HybridEncrypt keys. One can use these templates
// to generate new Keysets.

// DHKEM_X25519_HKDF_SHA256_HKDF_SHA256_AES_128_GCM_Key_Template creates a HPKE
// key template with
//  - KEM: DHKEM_X25519_HKDF_SHA256,
//  - KDF: HKDF_SHA256, and
//  - AEAD: AES_128_GCM.
// It adds the 5-byte Tink prefix to ciphertexts.
func DHKEM_X25519_HKDF_SHA256_HKDF_SHA256_AES_128_GCM_Key_Template() *tinkpb.KeyTemplate {
	return createHPKEKeyTemplate(
		hpkepb.HpkeKem_DHKEM_X25519_HKDF_SHA256,
		hpkepb.HpkeKdf_HKDF_SHA256,
		hpkepb.HpkeAead_AES_128_GCM,
		tinkpb.OutputPrefixType_TINK,
	)
}

// DHKEM_X25519_HKDF_SHA256_HKDF_SHA256_AES_128_GCM_Raw_Key_Template creates a
// HPKE key template with
//  - KEM: DHKEM_X25519_HKDF_SHA256,
//  - KDF: HKDF_SHA256, and
//  - AEAD: AES_128_GCM.
// It does not add a prefix to ciphertexts.
func DHKEM_X25519_HKDF_SHA256_HKDF_SHA256_AES_128_GCM_Raw_Key_Template() *tinkpb.KeyTemplate {
	return createHPKEKeyTemplate(
		hpkepb.HpkeKem_DHKEM_X25519_HKDF_SHA256,
		hpkepb.HpkeKdf_HKDF_SHA256,
		hpkepb.HpkeAead_AES_128_GCM,
		tinkpb.OutputPrefixType_RAW,
	)
}

// DHKEM_X25519_HKDF_SHA256_HKDF_SHA256_AES_256_GCM_Key_Template creates a HPKE
// key template with
//  - KEM: DHKEM_X25519_HKDF_SHA256,
//  - KDF: HKDF_SHA256, and
//  - AEAD: AES_256_GCM.
// It adds the 5-byte Tink prefix to ciphertexts.
func DHKEM_X25519_HKDF_SHA256_HKDF_SHA256_AES_256_GCM_Key_Template() *tinkpb.KeyTemplate {
	return createHPKEKeyTemplate(
		hpkepb.HpkeKem_DHKEM_X25519_HKDF_SHA256,
		hpkepb.HpkeKdf_HKDF_SHA256,
		hpkepb.HpkeAead_AES_256_GCM,
		tinkpb.OutputPrefixType_TINK,
	)
}

// DHKEM_X25519_HKDF_SHA256_HKDF_SHA256_AES_256_GCM_Raw_Key_Template creates a
// HPKE key template with
//  - KEM: DHKEM_X25519_HKDF_SHA256,
//  - KDF: HKDF_SHA256, and
//  - AEAD: AES_256_GCM.
// It does not add a prefix to ciphertexts.
func DHKEM_X25519_HKDF_SHA256_HKDF_SHA256_AES_256_GCM_Raw_Key_Template() *tinkpb.KeyTemplate {
	return createHPKEKeyTemplate(
		hpkepb.HpkeKem_DHKEM_X25519_HKDF_SHA256,
		hpkepb.HpkeKdf_HKDF_SHA256,
		hpkepb.HpkeAead_AES_256_GCM,
		tinkpb.OutputPrefixType_RAW,
	)
}

// DHKEM_X25519_HKDF_SHA256_HKDF_SHA256_CHACHA20_POLY1305_Key_Template creates a HPKE
// key template with
//  - KEM: DHKEM_X25519_HKDF_SHA256,
//  - KDF: HKDF_SHA256, and
//  - AEAD: CHACHA20_POLY1305.
// It adds the 5-byte Tink prefix to ciphertexts.
func DHKEM_X25519_HKDF_SHA256_HKDF_SHA256_CHACHA20_POLY1305_Key_Template() *tinkpb.KeyTemplate {
	return createHPKEKeyTemplate(
		hpkepb.HpkeKem_DHKEM_X25519_HKDF_SHA256,
		hpkepb.HpkeKdf_HKDF_SHA256,
		hpkepb.HpkeAead_CHACHA20_POLY1305,
		tinkpb.OutputPrefixType_TINK,
	)
}

// DHKEM_X25519_HKDF_SHA256_HKDF_SHA256_CHACHA20_POLY1305_Raw_Key_Template creates a
// HPKE key template with
//  - KEM: DHKEM_X25519_HKDF_SHA256,
//  - KDF: HKDF_SHA256, and
//  - AEAD: CHACHA20_POLY1305.
// It does not add a prefix to ciphertexts.
func DHKEM_X25519_HKDF_SHA256_HKDF_SHA256_CHACHA20_POLY1305_Raw_Key_Template() *tinkpb.KeyTemplate {
	return createHPKEKeyTemplate(
		hpkepb.HpkeKem_DHKEM_X25519_HKDF_SHA256,
		hpkepb.HpkeKdf_HKDF_SHA256,
		hpkepb.HpkeAead_CHACHA20_POLY1305,
		tinkpb.OutputPrefixType_RAW,
	)
}

// createHPKEKeyTemplate creates a new HPKE key template with the given parameters.
func createHPKEKeyTemplate(kem hpkepb.HpkeKem, kdf hpkepb.HpkeKdf, aead hpkepb.HpkeAead, outputPrefixType tinkpb.OutputPrefixType) *tinkpb.KeyTemplate {
	format := &hpkepb.HpkeKeyFormat{
		Params: &hpkepb.HpkeParams{
			Kem:  kem,
			Kdf:  kdf,
			Aead: aead,
		},
	}
	serializedFormat, _ := proto.Marshal(format)
{'fraction_non_alphanumeric': 0.09676726452582966, 'fraction_numerical': 0.0796906884330362, 'mean_word_length': 4.445614035087719, 'pattern_counts': {'":': 0, '<': 3, '<?xml version=': 0, '>': 3, 'https://': 0, 'lorem ipsum': 0, 'www.': 2, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '5195675', 'n_tokens_mistral': 4613, 'n_tokens_neox': 3870, 'n_words': 669}