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Revision 098f27f9ef8be2a418f76896ee3c824e8709fcf7 authored by Matt Caswell on 17 October 2023, 13:55:48 UTC, committed by Tomas Mraz on 19 October 2023, 09:54:44 UTC
Ignore ping deadline when calculating tick deadline if we can't send
If the CC TX allowance is zero then we cannot send a PING frame at the
moment, so do not take into account the ping deadline when calculating the
tick deadline in that case.

This avoids the hang found by the fuzzer mentioned in
https://github.com/openssl/openssl/pull/22368#issuecomment-1765131727

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22410)
1 parent 56e3032
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dhkem_test.inc
/*
 * Copyright 2022-2023 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

typedef struct {
    const char *curvename;
    /* seed */
    const unsigned char *ikm;
    size_t ikmlen;
    /* expected public key */
    const unsigned char *pub;
    size_t publen;
    /* expected private key */
    const unsigned char *priv;
    size_t privlen;
} TEST_DERIVEKEY_DATA;

typedef struct {
    const char *curve;
    /* The seed for the senders ephemeral key */
    const unsigned char *ikmE;
    size_t ikmElen;
    /* Recipient key */
    const unsigned char *rpub;
    size_t rpublen;
    const unsigned char *rpriv;
    size_t rprivlen;
    /* The senders generated ephemeral public key */
    const unsigned char *expected_enc;
    size_t expected_enclen;
    /* The generated shared secret */
    const unsigned char *expected_secret;
    size_t expected_secretlen;
    /* Senders Auth key */
    const unsigned char *spub;
    size_t spublen;
    const unsigned char *spriv;
    size_t sprivlen;
} TEST_ENCAPDATA;

static const char *dhkem_supported_curves[] = {
    "P-256",
    "P-384",
    "P-521",
#ifndef OPENSSL_NO_ECX
    "X25519",
    "X448",
#endif
};

/* TEST vectors extracted from RFC 9180 */

/* Base test values */
#ifndef OPENSSL_NO_ECX
static const unsigned char x25519_ikme[] = {
    0x72, 0x68, 0x60, 0x0d, 0x40, 0x3f, 0xce, 0x43,
    0x15, 0x61, 0xae, 0xf5, 0x83, 0xee, 0x16, 0x13,
    0x52, 0x7c, 0xff, 0x65, 0x5c, 0x13, 0x43, 0xf2,
    0x98, 0x12, 0xe6, 0x67, 0x06, 0xdf, 0x32, 0x34
};
static const unsigned char x25519_ikme_priv[] = {
    0x52, 0xc4, 0xa7, 0x58, 0xa8, 0x02, 0xcd, 0x8b,
    0x93, 0x6e, 0xce, 0xea, 0x31, 0x44, 0x32, 0x79,
    0x8d, 0x5b, 0xaf, 0x2d, 0x7e, 0x92, 0x35, 0xdc,
    0x08, 0x4a, 0xb1, 0xb9, 0xcf, 0xa2, 0xf7, 0x36
};
static const unsigned char x25519_ikme_pub[] = {
    0x37, 0xfd, 0xa3, 0x56, 0x7b, 0xdb, 0xd6, 0x28,
    0xe8, 0x86, 0x68, 0xc3, 0xc8, 0xd7, 0xe9, 0x7d,
    0x1d, 0x12, 0x53, 0xb6, 0xd4, 0xea, 0x6d, 0x44,
    0xc1, 0x50, 0xf7, 0x41, 0xf1, 0xbf, 0x44, 0x31
};
static const unsigned char x25519_rpub[] = {
    0x39, 0x48, 0xcf, 0xe0, 0xad, 0x1d, 0xdb, 0x69,
    0x5d, 0x78, 0x0e, 0x59, 0x07, 0x71, 0x95, 0xda,
    0x6c, 0x56, 0x50, 0x6b, 0x02, 0x73, 0x29, 0x79,
    0x4a, 0xb0, 0x2b, 0xca, 0x80, 0x81, 0x5c, 0x4d
};
static const unsigned char x25519_rpriv[] = {
    0x46, 0x12, 0xc5, 0x50, 0x26, 0x3f, 0xc8, 0xad,
    0x58, 0x37, 0x5d, 0xf3, 0xf5, 0x57, 0xaa, 0xc5,
    0x31, 0xd2, 0x68, 0x50, 0x90, 0x3e, 0x55, 0xa9,
    0xf2, 0x3f, 0x21, 0xd8, 0x53, 0x4e, 0x8a, 0xc8
};
static const unsigned char x25519_expected_enc[] = {
    0x37, 0xfd, 0xa3, 0x56, 0x7b, 0xdb, 0xd6, 0x28,
    0xe8, 0x86, 0x68, 0xc3, 0xc8, 0xd7, 0xe9, 0x7d,
    0x1d, 0x12, 0x53, 0xb6, 0xd4, 0xea, 0x6d, 0x44,
    0xc1, 0x50, 0xf7, 0x41, 0xf1, 0xbf, 0x44, 0x31
};
static const unsigned char x25519_expected_secret[] = {
    0xfe, 0x0e, 0x18, 0xc9, 0xf0, 0x24, 0xce, 0x43,
    0x79, 0x9a, 0xe3, 0x93, 0xc7, 0xe8, 0xfe, 0x8f,
    0xce, 0x9d, 0x21, 0x88, 0x75, 0xe8, 0x22, 0x7b,
    0x01, 0x87, 0xc0, 0x4e, 0x7d, 0x2e, 0xa1, 0xfc
};

static const unsigned char x25519_auth_ikme[] = {
    0x6e, 0x6d, 0x8f, 0x20, 0x0e, 0xa2, 0xfb, 0x20,
    0xc3, 0x0b, 0x00, 0x3a, 0x8b, 0x4f, 0x43, 0x3d,
    0x2f, 0x4e, 0xd4, 0xc2, 0x65, 0x8d, 0x5b, 0xc8,
    0xce, 0x2f, 0xef, 0x71, 0x80, 0x59, 0xc9, 0xf7
};
static const unsigned char x25519_auth_rpub[] = {
    0x16, 0x32, 0xd5, 0xc2, 0xf7, 0x1c, 0x2b, 0x38,
    0xd0, 0xa8, 0xfc, 0xc3, 0x59, 0x35, 0x52, 0x00,
    0xca, 0xa8, 0xb1, 0xff, 0xdf, 0x28, 0x61, 0x80,
    0x80, 0x46, 0x6c, 0x90, 0x9c, 0xb6, 0x9b, 0x2e
};
static const unsigned char x25519_auth_rpriv[] = {
    0xfd, 0xea, 0x67, 0xcf, 0x83, 0x1f, 0x1c, 0xa9,
    0x8d, 0x8e, 0x27, 0xb1, 0xf6, 0xab, 0xeb, 0x5b,
    0x77, 0x45, 0xe9, 0xd3, 0x53, 0x48, 0xb8, 0x0f,
    0xa4, 0x07, 0xff, 0x69, 0x58, 0xf9, 0x13, 0x7e
};
static const unsigned char x25519_auth_spub[] = {
    0x8b, 0x0c, 0x70, 0x87, 0x3d, 0xc5, 0xae, 0xcb,
    0x7f, 0x9e, 0xe4, 0xe6, 0x24, 0x06, 0xa3, 0x97,
    0xb3, 0x50, 0xe5, 0x70, 0x12, 0xbe, 0x45, 0xcf,
    0x53, 0xb7, 0x10, 0x5a, 0xe7, 0x31, 0x79, 0x0b
};
static const unsigned char x25519_auth_spriv[] = {
    0xdc, 0x4a, 0x14, 0x63, 0x13, 0xcc, 0xe6, 0x0a,
    0x27, 0x8a, 0x53, 0x23, 0xd3, 0x21, 0xf0, 0x51,
    0xc5, 0x70, 0x7e, 0x9c, 0x45, 0xba, 0x21, 0xa3,
    0x47, 0x9f, 0xec, 0xdf, 0x76, 0xfc, 0x69, 0xdd
};
static const unsigned char x25519_auth_expected_enc[] = {
    0x23, 0xfb, 0x95, 0x25, 0x71, 0xa1, 0x4a, 0x25,
    0xe3, 0xd6, 0x78, 0x14, 0x0c, 0xd0, 0xe5, 0xeb,
    0x47, 0xa0, 0x96, 0x1b, 0xb1, 0x8a, 0xfc, 0xf8,
    0x58, 0x96, 0xe5, 0x45, 0x3c, 0x31, 0x2e, 0x76
};
static const unsigned char x25519_auth_expected_secret[] = {
    0x2d, 0x6d, 0xb4, 0xcf, 0x71, 0x9d, 0xc7, 0x29,
    0x3f, 0xcb, 0xf3, 0xfa, 0x64, 0x69, 0x07, 0x08,
    0xe4, 0x4e, 0x2b, 0xeb, 0xc8, 0x1f, 0x84, 0x60,
    0x86, 0x77, 0x95, 0x8c, 0x0d, 0x44, 0x48, 0xa7
};
#endif

static const unsigned char p256_ikme[] = {
    0x42, 0x70, 0xe5, 0x4f, 0xfd, 0x08, 0xd7, 0x9d,
    0x59, 0x28, 0x02, 0x0a, 0xf4, 0x68, 0x6d, 0x8f,
    0x6b, 0x7d, 0x35, 0xdb, 0xe4, 0x70, 0x26, 0x5f,
    0x1f, 0x5a, 0xa2, 0x28, 0x16, 0xce, 0x86, 0x0e
};

static const unsigned char p256_ikme_pub[] = {
    0x04, 0xa9, 0x27, 0x19, 0xc6, 0x19, 0x5d, 0x50,
    0x85, 0x10, 0x4f, 0x46, 0x9a, 0x8b, 0x98, 0x14,
    0xd5, 0x83, 0x8f, 0xf7, 0x2b, 0x60, 0x50, 0x1e,
    0x2c, 0x44, 0x66, 0xe5, 0xe6, 0x7b, 0x32, 0x5a,
    0xc9, 0x85, 0x36, 0xd7, 0xb6, 0x1a, 0x1a, 0xf4,
    0xb7, 0x8e, 0x5b, 0x7f, 0x95, 0x1c, 0x09, 0x00,
    0xbe, 0x86, 0x3c, 0x40, 0x3c, 0xe6, 0x5c, 0x9b,
    0xfc, 0xb9, 0x38, 0x26, 0x57, 0x22, 0x2d, 0x18,
    0xc4
};
static const unsigned char p256_ikme_priv[] = {
    0x49, 0x95, 0x78, 0x8e, 0xf4, 0xb9, 0xd6, 0x13,
    0x2b, 0x24, 0x9c, 0xe5, 0x9a, 0x77, 0x28, 0x14,
    0x93, 0xeb, 0x39, 0xaf, 0x37, 0x3d, 0x23, 0x6a,
    0x1f, 0xe4, 0x15, 0xcb, 0x0c, 0x2d, 0x7b, 0xeb
};

static const unsigned char p256_ikmr[] = {
    0x66, 0x8b, 0x37, 0x17, 0x1f, 0x10, 0x72, 0xf3,
    0xcf, 0x12, 0xea, 0x8a, 0x23, 0x6a, 0x45, 0xdf,
    0x23, 0xfc, 0x13, 0xb8, 0x2a, 0xf3, 0x60, 0x9a,
    0xd1, 0xe3, 0x54, 0xf6, 0xef, 0x81, 0x75, 0x50
};

static const unsigned char p256_ikmr_pub[] = {
    0x04, 0xfe, 0x8c, 0x19, 0xce, 0x09, 0x05, 0x19,
    0x1e, 0xbc, 0x29, 0x8a, 0x92, 0x45, 0x79, 0x25,
    0x31, 0xf2, 0x6f, 0x0c, 0xec, 0xe2, 0x46, 0x06,
    0x39, 0xe8, 0xbc, 0x39, 0xcb, 0x7f, 0x70, 0x6a,
    0x82, 0x6a, 0x77, 0x9b, 0x4c, 0xf9, 0x69, 0xb8,
    0xa0, 0xe5, 0x39, 0xc7, 0xf6, 0x2f, 0xb3, 0xd3,
    0x0a, 0xd6, 0xaa, 0x8f, 0x80, 0xe3, 0x0f, 0x1d,
    0x12, 0x8a, 0xaf, 0xd6, 0x8a, 0x2c, 0xe7, 0x2e,
    0xa0
};

static const unsigned char p256_ikmr_priv[] = {
    0xf3, 0xce, 0x7f, 0xda, 0xe5, 0x7e, 0x1a, 0x31,
    0x0d, 0x87, 0xf1, 0xeb, 0xbd, 0xe6, 0xf3, 0x28,
    0xbe, 0x0a, 0x99, 0xcd, 0xbc, 0xad, 0xf4, 0xd6,
    0x58, 0x9c, 0xf2, 0x9d, 0xe4, 0xb8, 0xff, 0xd2
};

static const unsigned char p256_expected_enc[] = {
    0x04, 0xa9, 0x27, 0x19, 0xc6, 0x19, 0x5d, 0x50,
    0x85, 0x10, 0x4f, 0x46, 0x9a, 0x8b, 0x98, 0x14,
    0xd5, 0x83, 0x8f, 0xf7, 0x2b, 0x60, 0x50, 0x1e,
    0x2c, 0x44, 0x66, 0xe5, 0xe6, 0x7b, 0x32, 0x5a,
    0xc9, 0x85, 0x36, 0xd7, 0xb6, 0x1a, 0x1a, 0xf4,
    0xb7, 0x8e, 0x5b, 0x7f, 0x95, 0x1c, 0x09, 0x00,
    0xbe, 0x86, 0x3c, 0x40, 0x3c, 0xe6, 0x5c, 0x9b,
    0xfc, 0xb9, 0x38, 0x26, 0x57, 0x22, 0x2d, 0x18,
    0xc4
};
static const unsigned char p256_expected_secret[] = {
    0xc0, 0xd2, 0x6a, 0xea, 0xb5, 0x36, 0x60, 0x9a,
    0x57, 0x2b, 0x07, 0x69, 0x5d, 0x93, 0x3b, 0x58,
    0x9d, 0xcf, 0x36, 0x3f, 0xf9, 0xd9, 0x3c, 0x93,
    0xad, 0xea, 0x53, 0x7a, 0xea, 0xbb, 0x8c, 0xb8
};

static const unsigned char p521_ikme[] = {
    0x7f, 0x06, 0xab, 0x82, 0x15, 0x10, 0x5f, 0xc4,
    0x6a, 0xce, 0xeb, 0x2e, 0x3d, 0xc5, 0x02, 0x8b,
    0x44, 0x36, 0x4f, 0x96, 0x04, 0x26, 0xeb, 0x0d,
    0x8e, 0x40, 0x26, 0xc2, 0xf8, 0xb5, 0xd7, 0xe7,
    0xa9, 0x86, 0x68, 0x8f, 0x15, 0x91, 0xab, 0xf5,
    0xab, 0x75, 0x3c, 0x35, 0x7a, 0x5d, 0x6f, 0x04,
    0x40, 0x41, 0x4b, 0x4e, 0xd4, 0xed, 0xe7, 0x13,
    0x17, 0x77, 0x2a, 0xc9, 0x8d, 0x92, 0x39, 0xf7,
    0x09, 0x04
};

static const unsigned char p521_ikme_pub[] = {
    0x04, 0x01, 0x38, 0xb3, 0x85, 0xca, 0x16, 0xbb,
    0x0d, 0x5f, 0xa0, 0xc0, 0x66, 0x5f, 0xbb, 0xd7,
    0xe6, 0x9e, 0x3e, 0xe2, 0x9f, 0x63, 0x99, 0x1d,
    0x3e, 0x9b, 0x5f, 0xa7, 0x40, 0xaa, 0xb8, 0x90,
    0x0a, 0xae, 0xed, 0x46, 0xed, 0x73, 0xa4, 0x90,
    0x55, 0x75, 0x84, 0x25, 0xa0, 0xce, 0x36, 0x50,
    0x7c, 0x54, 0xb2, 0x9c, 0xc5, 0xb8, 0x5a, 0x5c,
    0xee, 0x6b, 0xae, 0x0c, 0xf1, 0xc2, 0x1f, 0x27,
    0x31, 0xec, 0xe2, 0x01, 0x3d, 0xc3, 0xfb, 0x7c,
    0x8d, 0x21, 0x65, 0x4b, 0xb1, 0x61, 0xb4, 0x63,
    0x96, 0x2c, 0xa1, 0x9e, 0x8c, 0x65, 0x4f, 0xf2,
    0x4c, 0x94, 0xdd, 0x28, 0x98, 0xde, 0x12, 0x05,
    0x1f, 0x1e, 0xd0, 0x69, 0x22, 0x37, 0xfb, 0x02,
    0xb2, 0xf8, 0xd1, 0xdc, 0x1c, 0x73, 0xe9, 0xb3,
    0x66, 0xb5, 0x29, 0xeb, 0x43, 0x6e, 0x98, 0xa9,
    0x96, 0xee, 0x52, 0x2a, 0xef, 0x86, 0x3d, 0xd5,
    0x73, 0x9d, 0x2f, 0x29, 0xb0
};

static const unsigned char p521_ikme_priv[] = {
    0x01, 0x47, 0x84, 0xc6, 0x92, 0xda, 0x35, 0xdf,
    0x6e, 0xcd, 0xe9, 0x8e, 0xe4, 0x3a, 0xc4, 0x25,
    0xdb, 0xdd, 0x09, 0x69, 0xc0, 0xc7, 0x2b, 0x42,
    0xf2, 0xe7, 0x08, 0xab, 0x9d, 0x53, 0x54, 0x15,
    0xa8, 0x56, 0x9b, 0xda, 0xcf, 0xcc, 0x0a, 0x11,
    0x4c, 0x85, 0xb8, 0xe3, 0xf2, 0x6a, 0xcf, 0x4d,
    0x68, 0x11, 0x5f, 0x8c, 0x91, 0xa6, 0x61, 0x78,
    0xcd, 0xbd, 0x03, 0xb7, 0xbc, 0xc5, 0x29, 0x1e,
    0x37, 0x4b
};

static const unsigned char p521_ikmr_pub[] = {
    0x04, 0x01, 0xb4, 0x54, 0x98, 0xc1, 0x71, 0x4e,
    0x2d, 0xce, 0x16, 0x7d, 0x3c, 0xaf, 0x16, 0x2e,
    0x45, 0xe0, 0x64, 0x2a, 0xfc, 0x7e, 0xd4, 0x35,
    0xdf, 0x79, 0x02, 0xcc, 0xae, 0x0e, 0x84, 0xba,
    0x0f, 0x7d, 0x37, 0x3f, 0x64, 0x6b, 0x77, 0x38,
    0xbb, 0xbd, 0xca, 0x11, 0xed, 0x91, 0xbd, 0xea,
    0xe3, 0xcd, 0xcb, 0xa3, 0x30, 0x1f, 0x24, 0x57,
    0xbe, 0x45, 0x2f, 0x27, 0x1f, 0xa6, 0x83, 0x75,
    0x80, 0xe6, 0x61, 0x01, 0x2a, 0xf4, 0x95, 0x83,
    0xa6, 0x2e, 0x48, 0xd4, 0x4b, 0xed, 0x35, 0x0c,
    0x71, 0x18, 0xc0, 0xd8, 0xdc, 0x86, 0x1c, 0x23,
    0x8c, 0x72, 0xa2, 0xbd, 0xa1, 0x7f, 0x64, 0x70,
    0x4f, 0x46, 0x4b, 0x57, 0x33, 0x8e, 0x7f, 0x40,
    0xb6, 0x09, 0x59, 0x48, 0x0c, 0x0e, 0x58, 0xe6,
    0x55, 0x9b, 0x19, 0x0d, 0x81, 0x66, 0x3e, 0xd8,
    0x16, 0xe5, 0x23, 0xb6, 0xb6, 0xa4, 0x18, 0xf6,
    0x6d, 0x24, 0x51, 0xec, 0x64
};
static const unsigned char p521_ikmr_priv[] = {
    0x01, 0x46, 0x26, 0x80, 0x36, 0x9a, 0xe3, 0x75,
    0xe4, 0xb3, 0x79, 0x10, 0x70, 0xa7, 0x45, 0x8e,
    0xd5, 0x27, 0x84, 0x2f, 0x6a, 0x98, 0xa7, 0x9f,
    0xf5, 0xe0, 0xd4, 0xcb, 0xde, 0x83, 0xc2, 0x71,
    0x96, 0xa3, 0x91, 0x69, 0x56, 0x65, 0x55, 0x23,
    0xa6, 0xa2, 0x55, 0x6a, 0x7a, 0xf6, 0x2c, 0x5c,
    0xad, 0xab, 0xe2, 0xef, 0x9d, 0xa3, 0x76, 0x0b,
    0xb2, 0x1e, 0x00, 0x52, 0x02, 0xf7, 0xb2, 0x46,
    0x28, 0x47
};

static const unsigned char p521_expected_enc[] = {
    0x04, 0x01, 0x38, 0xb3, 0x85, 0xca, 0x16, 0xbb,
    0x0d, 0x5f, 0xa0, 0xc0, 0x66, 0x5f, 0xbb, 0xd7,
    0xe6, 0x9e, 0x3e, 0xe2, 0x9f, 0x63, 0x99, 0x1d,
    0x3e, 0x9b, 0x5f, 0xa7, 0x40, 0xaa, 0xb8, 0x90,
    0x0a, 0xae, 0xed, 0x46, 0xed, 0x73, 0xa4, 0x90,
    0x55, 0x75, 0x84, 0x25, 0xa0, 0xce, 0x36, 0x50,
    0x7c, 0x54, 0xb2, 0x9c, 0xc5, 0xb8, 0x5a, 0x5c,
    0xee, 0x6b, 0xae, 0x0c, 0xf1, 0xc2, 0x1f, 0x27,
    0x31, 0xec, 0xe2, 0x01, 0x3d, 0xc3, 0xfb, 0x7c,
    0x8d, 0x21, 0x65, 0x4b, 0xb1, 0x61, 0xb4, 0x63,
    0x96, 0x2c, 0xa1, 0x9e, 0x8c, 0x65, 0x4f, 0xf2,
    0x4c, 0x94, 0xdd, 0x28, 0x98, 0xde, 0x12, 0x05,
    0x1f, 0x1e, 0xd0, 0x69, 0x22, 0x37, 0xfb, 0x02,
    0xb2, 0xf8, 0xd1, 0xdc, 0x1c, 0x73, 0xe9, 0xb3,
    0x66, 0xb5, 0x29, 0xeb, 0x43, 0x6e, 0x98, 0xa9,
    0x96, 0xee, 0x52, 0x2a, 0xef, 0x86, 0x3d, 0xd5,
    0x73, 0x9d, 0x2f, 0x29, 0xb0
};
static const unsigned char p521_expected_secret[] = {
    0x77, 0x6a, 0xb4, 0x21, 0x30, 0x2f, 0x6e, 0xff,
    0x7d, 0x7c, 0xb5, 0xcb, 0x1a, 0xda, 0xea, 0x0c,
    0xd5, 0x08, 0x72, 0xc7, 0x1c, 0x2d, 0x63, 0xc3,
    0x0c, 0x4f, 0x1d, 0x5e, 0x43, 0x65, 0x33, 0x36,
    0xfe, 0xf3, 0x3b, 0x10, 0x3c, 0x67, 0xe7, 0xa9,
    0x8a, 0xdd, 0x2d, 0x3b, 0x66, 0xe2, 0xfd, 0xa9,
    0x5b, 0x5b, 0x2a, 0x66, 0x7a, 0xa9, 0xda, 0xc7,
    0xe5, 0x9c, 0xc1, 0xd4, 0x6d, 0x30, 0xe8, 0x18
};

static const unsigned char p521_auth_ikme[] = {
    0xfe, 0x1c, 0x58, 0x9c, 0x2a, 0x05, 0x89, 0x38,
    0x95, 0xa5, 0x37, 0xf3, 0x8c, 0x7c, 0xb4, 0x30,
    0x0b, 0x5a, 0x7e, 0x8f, 0xef, 0x3d, 0x6c, 0xcb,
    0x8f, 0x07, 0xa4, 0x98, 0x02, 0x9c, 0x61, 0xe9,
    0x02, 0x62, 0xe0, 0x09, 0xdc, 0x25, 0x4c, 0x7f,
    0x62, 0x35, 0xf9, 0xc6, 0xb2, 0xfd, 0x6a, 0xef,
    0xf0, 0xa7, 0x14, 0xdb, 0x13, 0x1b, 0x09, 0x25,
    0x8c, 0x16, 0xe2, 0x17, 0xb7, 0xbd, 0x2a, 0xa6,
    0x19, 0xb0
};

static const unsigned char p521_auth_ikmr_pub[] = {
    0x04, 0x00, 0x7d, 0x41, 0x9b, 0x88, 0x34, 0xe7,
    0x51, 0x3d, 0x0e, 0x7c, 0xc6, 0x64, 0x24, 0xa1,
    0x36, 0xec, 0x5e, 0x11, 0x39, 0x5a, 0xb3, 0x53,
    0xda, 0x32, 0x4e, 0x35, 0x86, 0x67, 0x3e, 0xe7,
    0x3d, 0x53, 0xab, 0x34, 0xf3, 0x0a, 0x0b, 0x42,
    0xa9, 0x2d, 0x05, 0x4d, 0x0d, 0xb3, 0x21, 0xb8,
    0x0f, 0x62, 0x17, 0xe6, 0x55, 0xe3, 0x04, 0xf7,
    0x27, 0x93, 0x76, 0x7c, 0x42, 0x31, 0x78, 0x5c,
    0x4a, 0x4a, 0x6e, 0x00, 0x8f, 0x31, 0xb9, 0x3b,
    0x7a, 0x4f, 0x2b, 0x8c, 0xd1, 0x2e, 0x5f, 0xe5,
    0xa0, 0x52, 0x3d, 0xc7, 0x13, 0x53, 0xc6, 0x6c,
    0xbd, 0xad, 0x51, 0xc8, 0x6b, 0x9e, 0x0b, 0xdf,
    0xcd, 0x9a, 0x45, 0x69, 0x8f, 0x2d, 0xab, 0x18,
    0x09, 0xab, 0x1b, 0x0f, 0x88, 0xf5, 0x42, 0x27,
    0x23, 0x2c, 0x85, 0x8a, 0xcc, 0xc4, 0x4d, 0x9a,
    0x8d, 0x41, 0x77, 0x5a, 0xc0, 0x26, 0x34, 0x15,
    0x64, 0xa2, 0xd7, 0x49, 0xf4
};

static const unsigned char p521_auth_ikmr_priv[] = {
    0x01, 0x3e, 0xf3, 0x26, 0x94, 0x09, 0x98, 0x54,
    0x4a, 0x89, 0x9e, 0x15, 0xe1, 0x72, 0x65, 0x48,
    0xff, 0x43, 0xbb, 0xdb, 0x23, 0xa8, 0x58, 0x7a,
    0xa3, 0xbe, 0xf9, 0xd1, 0xb8, 0x57, 0x33, 0x8d,
    0x87, 0x28, 0x7d, 0xf5, 0x66, 0x70, 0x37, 0xb5,
    0x19, 0xd6, 0xa1, 0x46, 0x61, 0xe9, 0x50, 0x3c,
    0xfc, 0x95, 0xa1, 0x54, 0xd9, 0x35, 0x66, 0xd8,
    0xc8, 0x4e, 0x95, 0xce, 0x93, 0xad, 0x05, 0x29,
    0x3a, 0x0b
};

static const unsigned char p521_auth_ikms_pub[] = {
    0x04, 0x01, 0x5c, 0xc3, 0x63, 0x66, 0x32, 0xea,
    0x9a, 0x38, 0x79, 0xe4, 0x32, 0x40, 0xbe, 0xae,
    0x5d, 0x15, 0xa4, 0x4f, 0xba, 0x81, 0x92, 0x82,
    0xfa, 0xc2, 0x6a, 0x19, 0xc9, 0x89, 0xfa, 0xfd,
    0xd0, 0xf3, 0x30, 0xb8, 0x52, 0x1d, 0xff, 0x7d,
    0xc3, 0x93, 0x10, 0x1b, 0x01, 0x8c, 0x1e, 0x65,
    0xb0, 0x7b, 0xe9, 0xf5, 0xfc, 0x9a, 0x28, 0xa1,
    0xf4, 0x50, 0xd6, 0xa5, 0x41, 0xee, 0x0d, 0x76,
    0x22, 0x11, 0x33, 0x00, 0x1e, 0x8f, 0x0f, 0x6a,
    0x05, 0xab, 0x79, 0xf9, 0xb9, 0xbb, 0x9c, 0xcc,
    0xe1, 0x42, 0xa4, 0x53, 0xd5, 0x9c, 0x5a, 0xbe,
    0xbb, 0x56, 0x74, 0x83, 0x9d, 0x93, 0x5a, 0x3c,
    0xa1, 0xa3, 0xfb, 0xc3, 0x28, 0x53, 0x9a, 0x60,
    0xb3, 0xbc, 0x3c, 0x05, 0xfe, 0xd2, 0x28, 0x38,
    0x58, 0x4a, 0x72, 0x6b, 0x9c, 0x17, 0x67, 0x96,
    0xca, 0xd0, 0x16, 0x9b, 0xa4, 0x09, 0x33, 0x32,
    0xcb, 0xd2, 0xdc, 0x3a, 0x9f
};

static const unsigned char p521_auth_ikms_priv[] = {
    0x00, 0x10, 0x18, 0x58, 0x45, 0x99, 0x62, 0x5f,
    0xf9, 0x95, 0x3b, 0x93, 0x05, 0x84, 0x98, 0x50,
    0xd5, 0xe3, 0x4b, 0xd7, 0x89, 0xd4, 0xb8, 0x11,
    0x01, 0x13, 0x96, 0x62, 0xfb, 0xea, 0x8b, 0x65,
    0x08, 0xdd, 0xb9, 0xd0, 0x19, 0xb0, 0xd6, 0x92,
    0xe7, 0x37, 0xf6, 0x6b, 0xea, 0xe3, 0xf1, 0xf7,
    0x83, 0xe7, 0x44, 0x20, 0x2a, 0xaf, 0x6f, 0xea,
    0x01, 0x50, 0x6c, 0x27, 0x28, 0x7e, 0x35, 0x9f,
    0xe7, 0x76
};

static const unsigned char p521_auth_expected_enc[] = {
    0x04, 0x01, 0x7d, 0xe1, 0x2e, 0xde, 0x7f, 0x72,
    0xcb, 0x10, 0x1d, 0xab, 0x36, 0xa1, 0x11, 0x26,
    0x5c, 0x97, 0xb3, 0x65, 0x48, 0x16, 0xdc, 0xd6,
    0x18, 0x3f, 0x80, 0x9d, 0x4b, 0x3d, 0x11, 0x1f,
    0xe7, 0x59, 0x49, 0x7f, 0x8a, 0xef, 0xdc, 0x5d,
    0xbb, 0x40, 0xd3, 0xe6, 0xd2, 0x1d, 0xb1, 0x5b,
    0xdc, 0x60, 0xf1, 0x5f, 0x2a, 0x42, 0x07, 0x61,
    0xbc, 0xae, 0xef, 0x73, 0xb8, 0x91, 0xc2, 0xb1,
    0x17, 0xe9, 0xcf, 0x01, 0xe2, 0x93, 0x20, 0xb7,
    0x99, 0xbb, 0xc8, 0x6a, 0xfd, 0xc5, 0xea, 0x97,
    0xd9, 0x41, 0xea, 0x1c, 0x5b, 0xd5, 0xeb, 0xee,
    0xac, 0x7a, 0x78, 0x4b, 0x3b, 0xab, 0x52, 0x47,
    0x46, 0xf3, 0xe6, 0x40, 0xec, 0x26, 0xee, 0x1b,
    0xd9, 0x12, 0x55, 0xf9, 0x33, 0x0d, 0x97, 0x4f,
    0x84, 0x50, 0x84, 0x63, 0x7e, 0xe0, 0xe6, 0xfe,
    0x9f, 0x50, 0x5c, 0x5b, 0x87, 0xc8, 0x6a, 0x4e,
    0x1a, 0x6c, 0x30, 0x96, 0xdd
};

static const unsigned char p521_auth_expected_secret[] = {
    0x26, 0x64, 0x8f, 0xa2, 0xa2, 0xde, 0xb0, 0xbf,
    0xc5, 0x63, 0x49, 0xa5, 0x90, 0xfd, 0x4c, 0xb7,
    0x10, 0x8a, 0x51, 0x79, 0x7b, 0x63, 0x46, 0x94,
    0xfc, 0x02, 0x06, 0x1e, 0x8d, 0x91, 0xb3, 0x57,
    0x6a, 0xc7, 0x36, 0xa6, 0x8b, 0xf8, 0x48, 0xfe,
    0x2a, 0x58, 0xdf, 0xb1, 0x95, 0x6d, 0x26, 0x6e,
    0x68, 0x20, 0x9a, 0x4d, 0x63, 0x1e, 0x51, 0x3b,
    0xad, 0xf8, 0xf4, 0xdc, 0xfc, 0x00, 0xf3, 0x0a
};

static const TEST_DERIVEKEY_DATA ec_derivekey_data[] = {
    {
      "P-256",
      p256_ikme, sizeof(p256_ikme),
      p256_ikme_pub, sizeof(p256_ikme_pub),
      p256_ikme_priv, sizeof(p256_ikme_priv)
    },
    {
      "P-256",
      p256_ikmr, sizeof(p256_ikmr),
      p256_ikmr_pub, sizeof(p256_ikmr_pub),
      p256_ikmr_priv, sizeof(p256_ikmr_priv)
    },
    {
      "P-521",
      p521_ikme, sizeof(p521_ikme),
      p521_ikme_pub, sizeof(p521_ikme_pub),
      p521_ikme_priv, sizeof(p521_ikme_priv)
    }
};

static const TEST_ENCAPDATA ec_encapdata[] = {
    {
        "P-256",
        p256_ikme, sizeof(p256_ikme),
        p256_ikmr_pub, sizeof(p256_ikmr_pub),
        p256_ikmr_priv, sizeof(p256_ikmr_priv),
        p256_expected_enc, sizeof(p256_expected_enc),
        p256_expected_secret, sizeof(p256_expected_secret),
    },
#ifndef OPENSSL_NO_ECX
    {
        "X25519",
        x25519_ikme, sizeof(x25519_ikme),
        x25519_rpub, sizeof(x25519_rpub),
        x25519_rpriv, sizeof(x25519_rpriv),
        x25519_expected_enc, sizeof(x25519_expected_enc),
        x25519_expected_secret, sizeof(x25519_expected_secret),
    },
#endif
    {
        "P-521",
        p521_ikme, sizeof(p521_ikme),
        p521_ikmr_pub, sizeof(p521_ikmr_pub),
        p521_ikmr_priv, sizeof(p521_ikmr_priv),
        p521_expected_enc, sizeof(p521_expected_enc),
        p521_expected_secret, sizeof(p521_expected_secret),
    },
    {
        "P-521",
        p521_auth_ikme, sizeof(p521_auth_ikme),
        p521_auth_ikmr_pub, sizeof(p521_auth_ikmr_pub),
        p521_auth_ikmr_priv, sizeof(p521_auth_ikmr_priv),
        p521_auth_expected_enc, sizeof(p521_auth_expected_enc),
        p521_auth_expected_secret, sizeof(p521_auth_expected_secret),
        p521_auth_ikms_pub, sizeof(p521_auth_ikms_pub),
        p521_auth_ikms_priv, sizeof(p521_auth_ikms_priv)
    },
#ifndef OPENSSL_NO_ECX
    {
        "X25519",
        x25519_auth_ikme, sizeof(x25519_auth_ikme),
        x25519_auth_rpub, sizeof(x25519_auth_rpub),
        x25519_auth_rpriv, sizeof(x25519_auth_rpriv),
        x25519_auth_expected_enc, sizeof(x25519_auth_expected_enc),
        x25519_auth_expected_secret, sizeof(x25519_auth_expected_secret),
        x25519_auth_spub, sizeof(x25519_auth_spub),
        x25519_auth_spriv, sizeof(x25519_auth_spriv)
    }
#endif
};

/* Test vector from https://github.com/cfrg/draft-irtf-cfrg-hpke */
#ifndef OPENSSL_NO_ECX
static const unsigned char x448_ikmr[] = {
    0xd4, 0x5d, 0x16, 0x52, 0xdf, 0x74, 0x92, 0x0a,
    0xbf, 0x94, 0xa2, 0x88, 0x3c, 0x83, 0x05, 0x0f,
    0x50, 0x2f, 0xf5, 0x12, 0xff, 0xb5, 0x6f, 0x07,
    0xb6, 0xd8, 0x33, 0xec, 0x8d, 0xda, 0x74, 0xb6,
    0xa1, 0xc1, 0xcc, 0x4d, 0x42, 0xa2, 0x26, 0x41,
    0xc0, 0x96, 0x3d, 0x3c, 0x21, 0xed, 0x82, 0x61,
    0xf3, 0x44, 0xdc, 0x9e, 0x05, 0x01, 0xa8, 0x1c
};
static const unsigned char x448_ikmr_priv[] = {
    0x27, 0xa4, 0x35, 0x46, 0x08, 0xf3, 0xbd, 0xd3,
    0x8f, 0x1f, 0x5a, 0xf3, 0x05, 0xf3, 0xe0, 0x68,
    0x2e, 0xfe, 0x4e, 0x25, 0x80, 0x82, 0x49, 0xd8,
    0xfc, 0xb5, 0x59, 0x27, 0xf6, 0xa9, 0xf4, 0x46,
    0xb8, 0xdc, 0x1d, 0x0a, 0x2c, 0x3b, 0x8c, 0xb1,
    0x33, 0xa5, 0x67, 0x3b, 0x59, 0xa6, 0xd5, 0x5c,
    0xe7, 0x54, 0xec, 0x0c, 0x9a, 0x55, 0x54, 0x01
};
static const unsigned char x448_ikmr_pub[] = {
    0x14, 0x5d, 0x08, 0x3e, 0xa7, 0xa6, 0x37, 0x9d,
    0xbb, 0x32, 0xdc, 0xbd, 0x8a, 0xff, 0x4c, 0x20,
    0x6e, 0xa5, 0xd0, 0x69, 0xb7, 0x5e, 0x96, 0xc6,
    0xdd, 0x2a, 0x3e, 0x38, 0xf4, 0x41, 0x47, 0x1a,
    0xc9, 0x7a, 0xdc, 0xa6, 0x41, 0xfd, 0xad, 0x66,
    0x68, 0x5a, 0x96, 0xf3, 0x2b, 0x7c, 0x3e, 0x06,
    0x46, 0x35, 0xfa, 0xb3, 0xcc, 0x89, 0x23, 0x4e
};

static const TEST_DERIVEKEY_DATA ecx_derivekey_data[] = {
    {
      "X25519",
      x25519_ikme, sizeof(x25519_ikme),
      x25519_ikme_pub, sizeof(x25519_ikme_pub),
      x25519_ikme_priv, sizeof(x25519_ikme_priv)
    },
    {
      "X448",
      x448_ikmr, sizeof(x448_ikmr),
      x448_ikmr_pub, sizeof(x448_ikmr_pub),
      x448_ikmr_priv, sizeof(x448_ikmr_priv)
    },
};
#endif

/*
 * Helper function to create a EC or ECX private key from bytes.
 * The public key can optionally be NULL.
 */
static EVP_PKEY *new_raw_private_key(const char *curvename,
                                     const unsigned char *priv, size_t privlen,
                                     const unsigned char *pub, size_t publen)
{
    int ok = 0;
    EVP_PKEY_CTX *ctx;
    EVP_PKEY *key = NULL;
    OSSL_PARAM *params = NULL;
    BIGNUM *privbn = NULL;
    OSSL_PARAM_BLD *bld = NULL;
    int ecx = (curvename[0] == 'X');

    if (ecx)
        ctx = EVP_PKEY_CTX_new_from_name(libctx, curvename, NULL);
    else
        ctx = EVP_PKEY_CTX_new_from_name(libctx, "EC", NULL);
    if (ctx == NULL)
        return 0;

    bld = OSSL_PARAM_BLD_new();
    if (bld == NULL)
        goto err;

    if (ecx) {
        if (!OSSL_PARAM_BLD_push_octet_string(bld, OSSL_PKEY_PARAM_PRIV_KEY,
                                             (char *)priv, privlen))
            goto err;
    } else {
        privbn = BN_bin2bn(priv, privlen, NULL);
        if (privbn == NULL)
            goto err;
        if (!OSSL_PARAM_BLD_push_utf8_string(bld, OSSL_PKEY_PARAM_GROUP_NAME,
                                             curvename, 0))
            goto err;
        if (!OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_PRIV_KEY, privbn))
            goto err;
    }

    if (pub != NULL) {
        if (!OSSL_PARAM_BLD_push_octet_string(bld, OSSL_PKEY_PARAM_PUB_KEY,
                                             (char *)pub, publen))
            goto err;
    }
    params = OSSL_PARAM_BLD_to_param(bld);
    if (params == NULL)
        goto err;

    if (EVP_PKEY_fromdata_init(ctx) <= 0)
          goto err;
    if (EVP_PKEY_fromdata(ctx, &key, EVP_PKEY_KEYPAIR, params) <= 0)
          goto err;
    ok = 1;
err:
    if (!ok) {
        EVP_PKEY_free(key);
        key = NULL;
    }
    BN_free(privbn);
    OSSL_PARAM_free(params);
    OSSL_PARAM_BLD_free(bld);
    EVP_PKEY_CTX_free(ctx);
    return key;
}

static EVP_PKEY *new_raw_public_key(const char *curvename,
                                    const unsigned char *pub, size_t publen)
{
    int ok = 0;
    EVP_PKEY_CTX *ctx;
    EVP_PKEY *key = NULL;
    OSSL_PARAM params[3], *p = params;
    int ecx = (curvename[0] == 'X');

    if (ecx)
        ctx = EVP_PKEY_CTX_new_from_name(libctx, curvename, NULL);
    else
        ctx = EVP_PKEY_CTX_new_from_name(libctx, "EC", NULL);
    if (ctx == NULL)
        return 0;

    if (!ecx)
        *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME,
                                                (char *)curvename, 0);
    *p++ = OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_PUB_KEY,
                                             (char *)pub, publen);
    *p = OSSL_PARAM_construct_end();
    if (EVP_PKEY_fromdata_init(ctx) <= 0)
          goto err;
    if (EVP_PKEY_fromdata(ctx, &key, EVP_PKEY_PUBLIC_KEY, params) <= 0)
          goto err;
    ok = 1;
err:
    if (!ok) {
        EVP_PKEY_free(key);
        key = NULL;
    }
    EVP_PKEY_CTX_free(ctx);
    return key;
}

/* Helper function to perform encapsulation */
static int do_encap(const TEST_ENCAPDATA *t, EVP_PKEY *rpub, EVP_PKEY *spriv)
{
    int ret = 0;
    unsigned char secret[256] = { 0, };
    unsigned char enc[256] = { 0, };
    size_t secretlen = 0, enclen = 0;
    EVP_PKEY_CTX *sctx = NULL;
    OSSL_PARAM params[3], *p = params;

    *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KEM_PARAM_OPERATION,
                                            (char *)OSSL_KEM_PARAM_OPERATION_DHKEM,
                                            0);
    *p++ = OSSL_PARAM_construct_octet_string(OSSL_KEM_PARAM_IKME,
                                             (char *)t->ikmE, t->ikmElen);
    *p = OSSL_PARAM_construct_end();

    if (!TEST_ptr(sctx = EVP_PKEY_CTX_new_from_pkey(libctx, rpub, NULL)))
        goto err;
    if (t->spriv == NULL) {
        if (!TEST_int_eq(EVP_PKEY_encapsulate_init(sctx, params), 1))
            goto err;
    } else {
        if (!TEST_int_eq(EVP_PKEY_auth_encapsulate_init(sctx, spriv, params), 1))
        goto err;
    }
    ret = TEST_int_eq(EVP_PKEY_encapsulate(sctx, NULL, &enclen, NULL,
                                              &secretlen), 1)
          && TEST_int_eq(EVP_PKEY_encapsulate(sctx, enc, &enclen, secret,
                                              &secretlen), 1)
          && TEST_mem_eq(enc, enclen, t->expected_enc, t->expected_enclen)
          && TEST_mem_eq(secret, secretlen,
                         t->expected_secret, t->expected_secretlen);
err:
    EVP_PKEY_CTX_free(sctx);
    return ret;
}

/* Helper function to perform decapsulation */
static int do_decap(const TEST_ENCAPDATA *t, EVP_PKEY *rpriv, EVP_PKEY *spub)
{
    int ret = 0;
    EVP_PKEY_CTX *recipctx = NULL;
    unsigned char secret[256] = { 0, };
    size_t secretlen = 0;

    if (!TEST_ptr(recipctx = EVP_PKEY_CTX_new_from_pkey(libctx, rpriv, NULL)))
        goto err;
    if (t->spub == NULL) {
        if (!TEST_int_eq(EVP_PKEY_decapsulate_init(recipctx, opparam), 1))
            goto err;
    } else {
        if (!TEST_int_eq(EVP_PKEY_auth_decapsulate_init(recipctx, spub,
                                                        opparam), 1))
            goto err;
    }
    ret = TEST_int_eq(EVP_PKEY_decapsulate(recipctx, NULL, &secretlen,
                                              t->expected_enc,
                                              t->expected_enclen), 1)
          && TEST_int_eq(EVP_PKEY_decapsulate(recipctx, secret, &secretlen,
                                              t->expected_enc,
                                              t->expected_enclen), 1)
          && TEST_mem_eq(secret, secretlen,
                         t->expected_secret, t->expected_secretlen);
err:
    EVP_PKEY_CTX_free(recipctx);
    return ret;
}
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