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adding NTRU hrss1373 and hps40961229 #113

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Nov 20, 2021
Merged

adding NTRU hrss1373 and hps40961229 #113

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2 changes: 1 addition & 1 deletion README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -64,7 +64,7 @@ The following quantum-safe algorithms from liboqs are supported (assuming they h
- **FrodoKEM**: `frodokem-640-aes-sha256`, `frodokem-976-aes-sha384`, `frodokem-1344-aes-sha512`, `frodokem-640-shake-sha256`, `frodokem-976-shake-sha384`, `frodokem-1344-shake-sha512`
- **HQC**: `hqc-128-sha256`, `hqc-192-sha384`, `hqc-256-sha512`†
- **Kyber**: `kyber-512-sha256`, `kyber-768-sha384`, `kyber-1024-sha512`, `kyber-512-90s-sha256`, `kyber-768-90s-sha384`, `kyber-1024-90s-sha512`
- **NTRU**: `ntru-hps2048509-sha512`, `ntru-hps2048677-sha512`, `ntru-hrss701-sha512`, `ntru-hps4096821-sha512`
- **NTRU**: `ntru-hps2048509-sha512`, `ntru-hps2048677-sha512`, `ntru-hps4096821-sha512`, `ntru-hps40961229-sha512`, `ntru-hrss701-sha512`, `ntru-hrss1373-sha512`
- **NTRU-PRIME**: `ntruprime-ntrulpr653-sha256`, `ntruprime-sntrup653-sha256`, `ntruprime-ntrulpr761-sha384`, `ntruprime-sntrup761-sha384`, `ntruprime-ntrulpr857-sha384`, `ntruprime-sntrup857-sha384`, `ntruprime-ntrulpr1277-sha512`, `ntruprime-sntrup1277-sha512`
- **SIDH**: `sidh-p434-sha256`, `sidh-p434-compressed-sha256`, `sidh-p610-sha256`, `sidh-p610-compressed-sha256`, `sidh-p751-sha256`, `sidh-p751-compressed-sha256`
- **SIKE**: `sike-p434-sha256`, `sike-p434-compressed-sha256`, `sike-p610-sha256`, `sike-p610-compressed-sha256`, `sike-p751-sha256`, `sike-p751-compressed-sha256`
Expand Down
8 changes: 6 additions & 2 deletions kex.c
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Expand Up @@ -149,8 +149,10 @@ static const struct kexalg kexalgs[] = {
{ KEX_BIKE_L3_SHA512, KEX_KEM_BIKE_L3_SHA512, 0, SSH_DIGEST_SHA512 },
{ KEX_NTRU_HPS2048509_SHA512, KEX_KEM_NTRU_HPS2048509_SHA512, 0, SSH_DIGEST_SHA512 },
{ KEX_NTRU_HPS2048677_SHA512, KEX_KEM_NTRU_HPS2048677_SHA512, 0, SSH_DIGEST_SHA512 },
{ KEX_NTRU_HRSS701_SHA512, KEX_KEM_NTRU_HRSS701_SHA512, 0, SSH_DIGEST_SHA512 },
{ KEX_NTRU_HPS4096821_SHA512, KEX_KEM_NTRU_HPS4096821_SHA512, 0, SSH_DIGEST_SHA512 },
{ KEX_NTRU_HPS40961229_SHA512, KEX_KEM_NTRU_HPS40961229_SHA512, 0, SSH_DIGEST_SHA512 },
{ KEX_NTRU_HRSS701_SHA512, KEX_KEM_NTRU_HRSS701_SHA512, 0, SSH_DIGEST_SHA512 },
{ KEX_NTRU_HRSS1373_SHA512, KEX_KEM_NTRU_HRSS1373_SHA512, 0, SSH_DIGEST_SHA512 },
{ KEX_CLASSIC_MCELIECE_348864_SHA256, KEX_KEM_CLASSIC_MCELIECE_348864_SHA256, 0, SSH_DIGEST_SHA256 },
{ KEX_CLASSIC_MCELIECE_348864F_SHA256, KEX_KEM_CLASSIC_MCELIECE_348864F_SHA256, 0, SSH_DIGEST_SHA256 },
{ KEX_CLASSIC_MCELIECE_460896_SHA512, KEX_KEM_CLASSIC_MCELIECE_460896_SHA512, 0, SSH_DIGEST_SHA512 },
Expand Down Expand Up @@ -204,8 +206,10 @@ static const struct kexalg kexalgs[] = {
{ KEX_BIKE_L3_ECDH_NISTP384_SHA512, KEX_KEM_BIKE_L3_ECDH_NISTP384_SHA512, NID_secp384r1, SSH_DIGEST_SHA512 },
{ KEX_NTRU_HPS2048509_ECDH_NISTP256_SHA512, KEX_KEM_NTRU_HPS2048509_ECDH_NISTP256_SHA512, NID_X9_62_prime256v1, SSH_DIGEST_SHA512 },
{ KEX_NTRU_HPS2048677_ECDH_NISTP384_SHA512, KEX_KEM_NTRU_HPS2048677_ECDH_NISTP384_SHA512, NID_secp384r1, SSH_DIGEST_SHA512 },
{ KEX_NTRU_HRSS701_ECDH_NISTP384_SHA512, KEX_KEM_NTRU_HRSS701_ECDH_NISTP384_SHA512, NID_secp384r1, SSH_DIGEST_SHA512 },
{ KEX_NTRU_HPS4096821_ECDH_NISTP521_SHA512, KEX_KEM_NTRU_HPS4096821_ECDH_NISTP521_SHA512, NID_secp521r1, SSH_DIGEST_SHA512 },
{ KEX_NTRU_HPS40961229_ECDH_NISTP521_SHA512, KEX_KEM_NTRU_HPS40961229_ECDH_NISTP521_SHA512, NID_secp521r1, SSH_DIGEST_SHA512 },
{ KEX_NTRU_HRSS701_ECDH_NISTP384_SHA512, KEX_KEM_NTRU_HRSS701_ECDH_NISTP384_SHA512, NID_secp384r1, SSH_DIGEST_SHA512 },
{ KEX_NTRU_HRSS1373_ECDH_NISTP521_SHA512, KEX_KEM_NTRU_HRSS1373_ECDH_NISTP521_SHA512, NID_secp521r1, SSH_DIGEST_SHA512 },
{ KEX_CLASSIC_MCELIECE_348864_ECDH_NISTP256_SHA256, KEX_KEM_CLASSIC_MCELIECE_348864_ECDH_NISTP256_SHA256, NID_X9_62_prime256v1, SSH_DIGEST_SHA256 },
{ KEX_CLASSIC_MCELIECE_348864F_ECDH_NISTP256_SHA256, KEX_KEM_CLASSIC_MCELIECE_348864F_ECDH_NISTP256_SHA256, NID_X9_62_prime256v1, SSH_DIGEST_SHA256 },
{ KEX_CLASSIC_MCELIECE_460896_ECDH_NISTP384_SHA512, KEX_KEM_CLASSIC_MCELIECE_460896_ECDH_NISTP384_SHA512, NID_secp384r1, SSH_DIGEST_SHA512 },
Expand Down
48 changes: 36 additions & 12 deletions kex.h
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Original file line number Diff line number Diff line change
Expand Up @@ -95,8 +95,10 @@
#define KEX_BIKE_L3_SHA512 "bike-l3-sha512"
#define KEX_NTRU_HPS2048509_SHA512 "ntru-hps2048509-sha512"
#define KEX_NTRU_HPS2048677_SHA512 "ntru-hps2048677-sha512"
#define KEX_NTRU_HRSS701_SHA512 "ntru-hrss701-sha512"
#define KEX_NTRU_HPS4096821_SHA512 "ntru-hps4096821-sha512"
#define KEX_NTRU_HPS40961229_SHA512 "ntru-hps40961229-sha512"
#define KEX_NTRU_HRSS701_SHA512 "ntru-hrss701-sha512"
#define KEX_NTRU_HRSS1373_SHA512 "ntru-hrss1373-sha512"
#define KEX_CLASSIC_MCELIECE_348864_SHA256 "classic-mceliece-348864-sha256"
#define KEX_CLASSIC_MCELIECE_348864F_SHA256 "classic-mceliece-348864f-sha256"
#define KEX_CLASSIC_MCELIECE_460896_SHA512 "classic-mceliece-460896-sha512"
Expand Down Expand Up @@ -151,8 +153,10 @@
#define KEX_BIKE_L3_ECDH_NISTP384_SHA512 "ecdh-nistp384-bike-l3-sha512"
#define KEX_NTRU_HPS2048509_ECDH_NISTP256_SHA512 "ecdh-nistp256-ntru-hps2048509-sha512"
#define KEX_NTRU_HPS2048677_ECDH_NISTP384_SHA512 "ecdh-nistp384-ntru-hps2048677-sha512"
#define KEX_NTRU_HRSS701_ECDH_NISTP384_SHA512 "ecdh-nistp384-ntru-hrss701-sha512"
#define KEX_NTRU_HPS4096821_ECDH_NISTP521_SHA512 "ecdh-nistp521-ntru-hps4096821-sha512"
#define KEX_NTRU_HPS40961229_ECDH_NISTP521_SHA512 "ecdh-nistp521-ntru-hps40961229-sha512"
#define KEX_NTRU_HRSS701_ECDH_NISTP384_SHA512 "ecdh-nistp384-ntru-hrss701-sha512"
#define KEX_NTRU_HRSS1373_ECDH_NISTP521_SHA512 "ecdh-nistp521-ntru-hrss1373-sha512"
#define KEX_CLASSIC_MCELIECE_348864_ECDH_NISTP256_SHA256 "ecdh-nistp256-classic-mceliece-348864-sha256"
#define KEX_CLASSIC_MCELIECE_348864F_ECDH_NISTP256_SHA256 "ecdh-nistp256-classic-mceliece-348864f-sha256"
#define KEX_CLASSIC_MCELIECE_460896_ECDH_NISTP384_SHA512 "ecdh-nistp384-classic-mceliece-460896-sha512"
Expand Down Expand Up @@ -249,8 +253,10 @@ enum kex_exchange {
KEX_KEM_BIKE_L3_SHA512,
KEX_KEM_NTRU_HPS2048509_SHA512,
KEX_KEM_NTRU_HPS2048677_SHA512,
KEX_KEM_NTRU_HRSS701_SHA512,
KEX_KEM_NTRU_HPS4096821_SHA512,
KEX_KEM_NTRU_HPS40961229_SHA512,
KEX_KEM_NTRU_HRSS701_SHA512,
KEX_KEM_NTRU_HRSS1373_SHA512,
KEX_KEM_CLASSIC_MCELIECE_348864_SHA256,
KEX_KEM_CLASSIC_MCELIECE_348864F_SHA256,
KEX_KEM_CLASSIC_MCELIECE_460896_SHA512,
Expand Down Expand Up @@ -305,8 +311,10 @@ enum kex_exchange {
KEX_KEM_BIKE_L3_ECDH_NISTP384_SHA512,
KEX_KEM_NTRU_HPS2048509_ECDH_NISTP256_SHA512,
KEX_KEM_NTRU_HPS2048677_ECDH_NISTP384_SHA512,
KEX_KEM_NTRU_HRSS701_ECDH_NISTP384_SHA512,
KEX_KEM_NTRU_HPS4096821_ECDH_NISTP521_SHA512,
KEX_KEM_NTRU_HPS40961229_ECDH_NISTP521_SHA512,
KEX_KEM_NTRU_HRSS701_ECDH_NISTP384_SHA512,
KEX_KEM_NTRU_HRSS1373_ECDH_NISTP521_SHA512,
KEX_KEM_CLASSIC_MCELIECE_348864_ECDH_NISTP256_SHA256,
KEX_KEM_CLASSIC_MCELIECE_348864F_ECDH_NISTP256_SHA256,
KEX_KEM_CLASSIC_MCELIECE_460896_ECDH_NISTP384_SHA512,
Expand Down Expand Up @@ -580,14 +588,22 @@ int kex_kem_ntru_hps2048509_dec(struct kex *, const struct sshbuf *, struct ssh
int kex_kem_ntru_hps2048677_keypair(struct kex *);
int kex_kem_ntru_hps2048677_enc(struct kex *, const struct sshbuf *, struct sshbuf **, struct sshbuf **);
int kex_kem_ntru_hps2048677_dec(struct kex *, const struct sshbuf *, struct sshbuf **);
/* ntru_hrss701 prototypes */
int kex_kem_ntru_hrss701_keypair(struct kex *);
int kex_kem_ntru_hrss701_enc(struct kex *, const struct sshbuf *, struct sshbuf **, struct sshbuf **);
int kex_kem_ntru_hrss701_dec(struct kex *, const struct sshbuf *, struct sshbuf **);
/* ntru_hps4096821 prototypes */
int kex_kem_ntru_hps4096821_keypair(struct kex *);
int kex_kem_ntru_hps4096821_enc(struct kex *, const struct sshbuf *, struct sshbuf **, struct sshbuf **);
int kex_kem_ntru_hps4096821_dec(struct kex *, const struct sshbuf *, struct sshbuf **);
/* ntru_hps40961229 prototypes */
int kex_kem_ntru_hps40961229_keypair(struct kex *);
int kex_kem_ntru_hps40961229_enc(struct kex *, const struct sshbuf *, struct sshbuf **, struct sshbuf **);
int kex_kem_ntru_hps40961229_dec(struct kex *, const struct sshbuf *, struct sshbuf **);
/* ntru_hrss701 prototypes */
int kex_kem_ntru_hrss701_keypair(struct kex *);
int kex_kem_ntru_hrss701_enc(struct kex *, const struct sshbuf *, struct sshbuf **, struct sshbuf **);
int kex_kem_ntru_hrss701_dec(struct kex *, const struct sshbuf *, struct sshbuf **);
/* ntru_hrss1373 prototypes */
int kex_kem_ntru_hrss1373_keypair(struct kex *);
int kex_kem_ntru_hrss1373_enc(struct kex *, const struct sshbuf *, struct sshbuf **, struct sshbuf **);
int kex_kem_ntru_hrss1373_dec(struct kex *, const struct sshbuf *, struct sshbuf **);
/* classic_mceliece_348864 prototypes */
int kex_kem_classic_mceliece_348864_keypair(struct kex *);
int kex_kem_classic_mceliece_348864_enc(struct kex *, const struct sshbuf *, struct sshbuf **, struct sshbuf **);
Expand Down Expand Up @@ -798,14 +814,22 @@ int kex_kem_ntru_hps2048509_ecdh_nistp256_dec(struct kex *, const struct sshbuf
int kex_kem_ntru_hps2048677_ecdh_nistp384_keypair(struct kex *);
int kex_kem_ntru_hps2048677_ecdh_nistp384_enc(struct kex *, const struct sshbuf *, struct sshbuf **, struct sshbuf **);
int kex_kem_ntru_hps2048677_ecdh_nistp384_dec(struct kex *, const struct sshbuf *, struct sshbuf **);
/* ntru_hrss701_nistp384 prototypes */
int kex_kem_ntru_hrss701_ecdh_nistp384_keypair(struct kex *);
int kex_kem_ntru_hrss701_ecdh_nistp384_enc(struct kex *, const struct sshbuf *, struct sshbuf **, struct sshbuf **);
int kex_kem_ntru_hrss701_ecdh_nistp384_dec(struct kex *, const struct sshbuf *, struct sshbuf **);
/* ntru_hps4096821_nistp521 prototypes */
int kex_kem_ntru_hps4096821_ecdh_nistp521_keypair(struct kex *);
int kex_kem_ntru_hps4096821_ecdh_nistp521_enc(struct kex *, const struct sshbuf *, struct sshbuf **, struct sshbuf **);
int kex_kem_ntru_hps4096821_ecdh_nistp521_dec(struct kex *, const struct sshbuf *, struct sshbuf **);
/* ntru_hps40961229_nistp521 prototypes */
int kex_kem_ntru_hps40961229_ecdh_nistp521_keypair(struct kex *);
int kex_kem_ntru_hps40961229_ecdh_nistp521_enc(struct kex *, const struct sshbuf *, struct sshbuf **, struct sshbuf **);
int kex_kem_ntru_hps40961229_ecdh_nistp521_dec(struct kex *, const struct sshbuf *, struct sshbuf **);
/* ntru_hrss701_nistp384 prototypes */
int kex_kem_ntru_hrss701_ecdh_nistp384_keypair(struct kex *);
int kex_kem_ntru_hrss701_ecdh_nistp384_enc(struct kex *, const struct sshbuf *, struct sshbuf **, struct sshbuf **);
int kex_kem_ntru_hrss701_ecdh_nistp384_dec(struct kex *, const struct sshbuf *, struct sshbuf **);
/* ntru_hrss1373_nistp521 prototypes */
int kex_kem_ntru_hrss1373_ecdh_nistp521_keypair(struct kex *);
int kex_kem_ntru_hrss1373_ecdh_nistp521_enc(struct kex *, const struct sshbuf *, struct sshbuf **, struct sshbuf **);
int kex_kem_ntru_hrss1373_ecdh_nistp521_dec(struct kex *, const struct sshbuf *, struct sshbuf **);
/* classic_mceliece_348864_nistp256 prototypes */
int kex_kem_classic_mceliece_348864_ecdh_nistp256_keypair(struct kex *);
int kex_kem_classic_mceliece_348864_ecdh_nistp256_enc(struct kex *, const struct sshbuf *, struct sshbuf **, struct sshbuf **);
Expand Down
64 changes: 52 additions & 12 deletions kexgen.c
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Expand Up @@ -215,11 +215,17 @@ kex_gen_client(struct ssh *ssh)
case KEX_KEM_NTRU_HPS2048677_SHA512:
r = kex_kem_ntru_hps2048677_keypair(kex);
break;
case KEX_KEM_NTRU_HPS4096821_SHA512:
r = kex_kem_ntru_hps4096821_keypair(kex);
break;
case KEX_KEM_NTRU_HPS40961229_SHA512:
r = kex_kem_ntru_hps40961229_keypair(kex);
break;
case KEX_KEM_NTRU_HRSS701_SHA512:
r = kex_kem_ntru_hrss701_keypair(kex);
break;
case KEX_KEM_NTRU_HPS4096821_SHA512:
r = kex_kem_ntru_hps4096821_keypair(kex);
case KEX_KEM_NTRU_HRSS1373_SHA512:
r = kex_kem_ntru_hrss1373_keypair(kex);
break;
case KEX_KEM_CLASSIC_MCELIECE_348864_SHA256:
r = kex_kem_classic_mceliece_348864_keypair(kex);
Expand Down Expand Up @@ -379,11 +385,17 @@ kex_gen_client(struct ssh *ssh)
case KEX_KEM_NTRU_HPS2048677_ECDH_NISTP384_SHA512:
r = kex_kem_ntru_hps2048677_ecdh_nistp384_keypair(kex);
break;
case KEX_KEM_NTRU_HPS4096821_ECDH_NISTP521_SHA512:
r = kex_kem_ntru_hps4096821_ecdh_nistp521_keypair(kex);
break;
case KEX_KEM_NTRU_HPS40961229_ECDH_NISTP521_SHA512:
r = kex_kem_ntru_hps40961229_ecdh_nistp521_keypair(kex);
break;
case KEX_KEM_NTRU_HRSS701_ECDH_NISTP384_SHA512:
r = kex_kem_ntru_hrss701_ecdh_nistp384_keypair(kex);
break;
case KEX_KEM_NTRU_HPS4096821_ECDH_NISTP521_SHA512:
r = kex_kem_ntru_hps4096821_ecdh_nistp521_keypair(kex);
case KEX_KEM_NTRU_HRSS1373_ECDH_NISTP521_SHA512:
r = kex_kem_ntru_hrss1373_ecdh_nistp521_keypair(kex);
break;
case KEX_KEM_CLASSIC_MCELIECE_348864_ECDH_NISTP256_SHA256:
r = kex_kem_classic_mceliece_348864_ecdh_nistp256_keypair(kex);
Expand Down Expand Up @@ -617,11 +629,17 @@ input_kex_gen_reply(int type, u_int32_t seq, struct ssh *ssh)
case KEX_KEM_NTRU_HPS2048677_SHA512:
r = kex_kem_ntru_hps2048677_dec(kex, server_blob, &shared_secret);
break;
case KEX_KEM_NTRU_HPS4096821_SHA512:
r = kex_kem_ntru_hps4096821_dec(kex, server_blob, &shared_secret);
break;
case KEX_KEM_NTRU_HPS40961229_SHA512:
r = kex_kem_ntru_hps40961229_dec(kex, server_blob, &shared_secret);
break;
case KEX_KEM_NTRU_HRSS701_SHA512:
r = kex_kem_ntru_hrss701_dec(kex, server_blob, &shared_secret);
break;
case KEX_KEM_NTRU_HPS4096821_SHA512:
r = kex_kem_ntru_hps4096821_dec(kex, server_blob, &shared_secret);
case KEX_KEM_NTRU_HRSS1373_SHA512:
r = kex_kem_ntru_hrss1373_dec(kex, server_blob, &shared_secret);
break;
case KEX_KEM_CLASSIC_MCELIECE_348864_SHA256:
r = kex_kem_classic_mceliece_348864_dec(kex, server_blob, &shared_secret);
Expand Down Expand Up @@ -781,11 +799,17 @@ input_kex_gen_reply(int type, u_int32_t seq, struct ssh *ssh)
case KEX_KEM_NTRU_HPS2048677_ECDH_NISTP384_SHA512:
r = kex_kem_ntru_hps2048677_ecdh_nistp384_dec(kex, server_blob, &shared_secret);
break;
case KEX_KEM_NTRU_HPS4096821_ECDH_NISTP521_SHA512:
r = kex_kem_ntru_hps4096821_ecdh_nistp521_dec(kex, server_blob, &shared_secret);
break;
case KEX_KEM_NTRU_HPS40961229_ECDH_NISTP521_SHA512:
r = kex_kem_ntru_hps40961229_ecdh_nistp521_dec(kex, server_blob, &shared_secret);
break;
case KEX_KEM_NTRU_HRSS701_ECDH_NISTP384_SHA512:
r = kex_kem_ntru_hrss701_ecdh_nistp384_dec(kex, server_blob, &shared_secret);
break;
case KEX_KEM_NTRU_HPS4096821_ECDH_NISTP521_SHA512:
r = kex_kem_ntru_hps4096821_ecdh_nistp521_dec(kex, server_blob, &shared_secret);
case KEX_KEM_NTRU_HRSS1373_ECDH_NISTP521_SHA512:
r = kex_kem_ntru_hrss1373_ecdh_nistp521_dec(kex, server_blob, &shared_secret);
break;
case KEX_KEM_CLASSIC_MCELIECE_348864_ECDH_NISTP256_SHA256:
r = kex_kem_classic_mceliece_348864_ecdh_nistp256_dec(kex, server_blob, &shared_secret);
Expand Down Expand Up @@ -1083,12 +1107,20 @@ input_kex_gen_init(int type, u_int32_t seq, struct ssh *ssh)
r = kex_kem_ntru_hps2048677_enc(kex, client_pubkey,
&server_pubkey, &shared_secret);
break;
case KEX_KEM_NTRU_HPS4096821_SHA512:
r = kex_kem_ntru_hps4096821_enc(kex, client_pubkey,
&server_pubkey, &shared_secret);
break;
case KEX_KEM_NTRU_HPS40961229_SHA512:
r = kex_kem_ntru_hps40961229_enc(kex, client_pubkey,
&server_pubkey, &shared_secret);
break;
case KEX_KEM_NTRU_HRSS701_SHA512:
r = kex_kem_ntru_hrss701_enc(kex, client_pubkey,
&server_pubkey, &shared_secret);
break;
case KEX_KEM_NTRU_HPS4096821_SHA512:
r = kex_kem_ntru_hps4096821_enc(kex, client_pubkey,
case KEX_KEM_NTRU_HRSS1373_SHA512:
r = kex_kem_ntru_hrss1373_enc(kex, client_pubkey,
&server_pubkey, &shared_secret);
break;
case KEX_KEM_CLASSIC_MCELIECE_348864_SHA256:
Expand Down Expand Up @@ -1301,12 +1333,20 @@ input_kex_gen_init(int type, u_int32_t seq, struct ssh *ssh)
r = kex_kem_ntru_hps2048677_ecdh_nistp384_enc(kex, client_pubkey,
&server_pubkey, &shared_secret);
break;
case KEX_KEM_NTRU_HPS4096821_ECDH_NISTP521_SHA512:
r = kex_kem_ntru_hps4096821_ecdh_nistp521_enc(kex, client_pubkey,
&server_pubkey, &shared_secret);
break;
case KEX_KEM_NTRU_HPS40961229_ECDH_NISTP521_SHA512:
r = kex_kem_ntru_hps40961229_ecdh_nistp521_enc(kex, client_pubkey,
&server_pubkey, &shared_secret);
break;
case KEX_KEM_NTRU_HRSS701_ECDH_NISTP384_SHA512:
r = kex_kem_ntru_hrss701_ecdh_nistp384_enc(kex, client_pubkey,
&server_pubkey, &shared_secret);
break;
case KEX_KEM_NTRU_HPS4096821_ECDH_NISTP521_SHA512:
r = kex_kem_ntru_hps4096821_ecdh_nistp521_enc(kex, client_pubkey,
case KEX_KEM_NTRU_HRSS1373_ECDH_NISTP521_SHA512:
r = kex_kem_ntru_hrss1373_ecdh_nistp521_enc(kex, client_pubkey,
&server_pubkey, &shared_secret);
break;
case KEX_KEM_CLASSIC_MCELIECE_348864_ECDH_NISTP256_SHA256:
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