From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- crypto/dh.c | 926 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 926 insertions(+) create mode 100644 crypto/dh.c (limited to 'crypto/dh.c') diff --git a/crypto/dh.c b/crypto/dh.c new file mode 100644 index 0000000000..0fcad279e6 --- /dev/null +++ b/crypto/dh.c @@ -0,0 +1,926 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* Diffie-Hellman Key Agreement Method [RFC2631] + * + * Copyright (c) 2016, Intel Corporation + * Authors: Salvatore Benedetto + */ + +#include +#include +#include +#include +#include +#include +#include + +struct dh_ctx { + MPI p; /* Value is guaranteed to be set. */ + MPI g; /* Value is guaranteed to be set. */ + MPI xa; /* Value is guaranteed to be set. */ +}; + +static void dh_clear_ctx(struct dh_ctx *ctx) +{ + mpi_free(ctx->p); + mpi_free(ctx->g); + mpi_free(ctx->xa); + memset(ctx, 0, sizeof(*ctx)); +} + +/* + * If base is g we compute the public key + * ya = g^xa mod p; [RFC2631 sec 2.1.1] + * else if base if the counterpart public key we compute the shared secret + * ZZ = yb^xa mod p; [RFC2631 sec 2.1.1] + */ +static int _compute_val(const struct dh_ctx *ctx, MPI base, MPI val) +{ + /* val = base^xa mod p */ + return mpi_powm(val, base, ctx->xa, ctx->p); +} + +static inline struct dh_ctx *dh_get_ctx(struct crypto_kpp *tfm) +{ + return kpp_tfm_ctx(tfm); +} + +static int dh_check_params_length(unsigned int p_len) +{ + if (fips_enabled) + return (p_len < 2048) ? -EINVAL : 0; + + return (p_len < 1536) ? -EINVAL : 0; +} + +static int dh_set_params(struct dh_ctx *ctx, struct dh *params) +{ + if (dh_check_params_length(params->p_size << 3)) + return -EINVAL; + + ctx->p = mpi_read_raw_data(params->p, params->p_size); + if (!ctx->p) + return -EINVAL; + + ctx->g = mpi_read_raw_data(params->g, params->g_size); + if (!ctx->g) + return -EINVAL; + + return 0; +} + +static int dh_set_secret(struct crypto_kpp *tfm, const void *buf, + unsigned int len) +{ + struct dh_ctx *ctx = dh_get_ctx(tfm); + struct dh params; + + /* Free the old MPI key if any */ + dh_clear_ctx(ctx); + + if (crypto_dh_decode_key(buf, len, ¶ms) < 0) + goto err_clear_ctx; + + if (dh_set_params(ctx, ¶ms) < 0) + goto err_clear_ctx; + + ctx->xa = mpi_read_raw_data(params.key, params.key_size); + if (!ctx->xa) + goto err_clear_ctx; + + return 0; + +err_clear_ctx: + dh_clear_ctx(ctx); + return -EINVAL; +} + +/* + * SP800-56A public key verification: + * + * * For the safe-prime groups in FIPS mode, Q can be computed + * trivially from P and a full validation according to SP800-56A + * section 5.6.2.3.1 is performed. + * + * * For all other sets of group parameters, only a partial validation + * according to SP800-56A section 5.6.2.3.2 is performed. + */ +static int dh_is_pubkey_valid(struct dh_ctx *ctx, MPI y) +{ + if (unlikely(!ctx->p)) + return -EINVAL; + + /* + * Step 1: Verify that 2 <= y <= p - 2. + * + * The upper limit check is actually y < p instead of y < p - 1 + * in order to save one mpi_sub_ui() invocation here. Note that + * p - 1 is the non-trivial element of the subgroup of order 2 and + * thus, the check on y^q below would fail if y == p - 1. + */ + if (mpi_cmp_ui(y, 1) < 1 || mpi_cmp(y, ctx->p) >= 0) + return -EINVAL; + + /* + * Step 2: Verify that 1 = y^q mod p + * + * For the safe-prime groups q = (p - 1)/2. + */ + if (fips_enabled) { + MPI val, q; + int ret; + + val = mpi_alloc(0); + if (!val) + return -ENOMEM; + + q = mpi_alloc(mpi_get_nlimbs(ctx->p)); + if (!q) { + mpi_free(val); + return -ENOMEM; + } + + /* + * ->p is odd, so no need to explicitly subtract one + * from it before shifting to the right. + */ + mpi_rshift(q, ctx->p, 1); + + ret = mpi_powm(val, y, q, ctx->p); + mpi_free(q); + if (ret) { + mpi_free(val); + return ret; + } + + ret = mpi_cmp_ui(val, 1); + + mpi_free(val); + + if (ret != 0) + return -EINVAL; + } + + return 0; +} + +static int dh_compute_value(struct kpp_request *req) +{ + struct crypto_kpp *tfm = crypto_kpp_reqtfm(req); + struct dh_ctx *ctx = dh_get_ctx(tfm); + MPI base, val = mpi_alloc(0); + int ret = 0; + int sign; + + if (!val) + return -ENOMEM; + + if (unlikely(!ctx->xa)) { + ret = -EINVAL; + goto err_free_val; + } + + if (req->src) { + base = mpi_read_raw_from_sgl(req->src, req->src_len); + if (!base) { + ret = -EINVAL; + goto err_free_val; + } + ret = dh_is_pubkey_valid(ctx, base); + if (ret) + goto err_free_base; + } else { + base = ctx->g; + } + + ret = _compute_val(ctx, base, val); + if (ret) + goto err_free_base; + + if (fips_enabled) { + /* SP800-56A rev3 5.7.1.1 check: Validation of shared secret */ + if (req->src) { + MPI pone; + + /* z <= 1 */ + if (mpi_cmp_ui(val, 1) < 1) { + ret = -EBADMSG; + goto err_free_base; + } + + /* z == p - 1 */ + pone = mpi_alloc(0); + + if (!pone) { + ret = -ENOMEM; + goto err_free_base; + } + + ret = mpi_sub_ui(pone, ctx->p, 1); + if (!ret && !mpi_cmp(pone, val)) + ret = -EBADMSG; + + mpi_free(pone); + + if (ret) + goto err_free_base; + + /* SP800-56A rev 3 5.6.2.1.3 key check */ + } else { + if (dh_is_pubkey_valid(ctx, val)) { + ret = -EAGAIN; + goto err_free_val; + } + } + } + + ret = mpi_write_to_sgl(val, req->dst, req->dst_len, &sign); + if (ret) + goto err_free_base; + + if (sign < 0) + ret = -EBADMSG; +err_free_base: + if (req->src) + mpi_free(base); +err_free_val: + mpi_free(val); + return ret; +} + +static unsigned int dh_max_size(struct crypto_kpp *tfm) +{ + struct dh_ctx *ctx = dh_get_ctx(tfm); + + return mpi_get_size(ctx->p); +} + +static void dh_exit_tfm(struct crypto_kpp *tfm) +{ + struct dh_ctx *ctx = dh_get_ctx(tfm); + + dh_clear_ctx(ctx); +} + +static struct kpp_alg dh = { + .set_secret = dh_set_secret, + .generate_public_key = dh_compute_value, + .compute_shared_secret = dh_compute_value, + .max_size = dh_max_size, + .exit = dh_exit_tfm, + .base = { + .cra_name = "dh", + .cra_driver_name = "dh-generic", + .cra_priority = 100, + .cra_module = THIS_MODULE, + .cra_ctxsize = sizeof(struct dh_ctx), + }, +}; + + +struct dh_safe_prime { + unsigned int max_strength; + unsigned int p_size; + const char *p; +}; + +static const char safe_prime_g[] = { 2 }; + +struct dh_safe_prime_instance_ctx { + struct crypto_kpp_spawn dh_spawn; + const struct dh_safe_prime *safe_prime; +}; + +struct dh_safe_prime_tfm_ctx { + struct crypto_kpp *dh_tfm; +}; + +static void dh_safe_prime_free_instance(struct kpp_instance *inst) +{ + struct dh_safe_prime_instance_ctx *ctx = kpp_instance_ctx(inst); + + crypto_drop_kpp(&ctx->dh_spawn); + kfree(inst); +} + +static inline struct dh_safe_prime_instance_ctx *dh_safe_prime_instance_ctx( + struct crypto_kpp *tfm) +{ + return kpp_instance_ctx(kpp_alg_instance(tfm)); +} + +static int dh_safe_prime_init_tfm(struct crypto_kpp *tfm) +{ + struct dh_safe_prime_instance_ctx *inst_ctx = + dh_safe_prime_instance_ctx(tfm); + struct dh_safe_prime_tfm_ctx *tfm_ctx = kpp_tfm_ctx(tfm); + + tfm_ctx->dh_tfm = crypto_spawn_kpp(&inst_ctx->dh_spawn); + if (IS_ERR(tfm_ctx->dh_tfm)) + return PTR_ERR(tfm_ctx->dh_tfm); + + kpp_set_reqsize(tfm, sizeof(struct kpp_request) + + crypto_kpp_reqsize(tfm_ctx->dh_tfm)); + + return 0; +} + +static void dh_safe_prime_exit_tfm(struct crypto_kpp *tfm) +{ + struct dh_safe_prime_tfm_ctx *tfm_ctx = kpp_tfm_ctx(tfm); + + crypto_free_kpp(tfm_ctx->dh_tfm); +} + +static u64 __add_u64_to_be(__be64 *dst, unsigned int n, u64 val) +{ + unsigned int i; + + for (i = n; val && i > 0; --i) { + u64 tmp = be64_to_cpu(dst[i - 1]); + + tmp += val; + val = tmp >= val ? 0 : 1; + dst[i - 1] = cpu_to_be64(tmp); + } + + return val; +} + +static void *dh_safe_prime_gen_privkey(const struct dh_safe_prime *safe_prime, + unsigned int *key_size) +{ + unsigned int n, oversampling_size; + __be64 *key; + int err; + u64 h, o; + + /* + * Generate a private key following NIST SP800-56Ar3, + * sec. 5.6.1.1.1 and 5.6.1.1.3 resp.. + * + * 5.6.1.1.1: choose key length N such that + * 2 * ->max_strength <= N <= log2(q) + 1 = ->p_size * 8 - 1 + * with q = (p - 1) / 2 for the safe-prime groups. + * Choose the lower bound's next power of two for N in order to + * avoid excessively large private keys while still + * maintaining some extra reserve beyond the bare minimum in + * most cases. Note that for each entry in safe_prime_groups[], + * the following holds for such N: + * - N >= 256, in particular it is a multiple of 2^6 = 64 + * bits and + * - N < log2(q) + 1, i.e. N respects the upper bound. + */ + n = roundup_pow_of_two(2 * safe_prime->max_strength); + WARN_ON_ONCE(n & ((1u << 6) - 1)); + n >>= 6; /* Convert N into units of u64. */ + + /* + * Reserve one extra u64 to hold the extra random bits + * required as per 5.6.1.1.3. + */ + oversampling_size = (n + 1) * sizeof(__be64); + key = kmalloc(oversampling_size, GFP_KERNEL); + if (!key) + return ERR_PTR(-ENOMEM); + + /* + * 5.6.1.1.3, step 3 (and implicitly step 4): obtain N + 64 + * random bits and interpret them as a big endian integer. + */ + err = -EFAULT; + if (crypto_get_default_rng()) + goto out_err; + + err = crypto_rng_get_bytes(crypto_default_rng, (u8 *)key, + oversampling_size); + crypto_put_default_rng(); + if (err) + goto out_err; + + /* + * 5.6.1.1.3, step 5 is implicit: 2^N < q and thus, + * M = min(2^N, q) = 2^N. + * + * For step 6, calculate + * key = (key[] mod (M - 1)) + 1 = (key[] mod (2^N - 1)) + 1. + * + * In order to avoid expensive divisions, note that + * 2^N mod (2^N - 1) = 1 and thus, for any integer h, + * 2^N * h mod (2^N - 1) = h mod (2^N - 1) always holds. + * The big endian integer key[] composed of n + 1 64bit words + * may be written as key[] = h * 2^N + l, with h = key[0] + * representing the 64 most significant bits and l + * corresponding to the remaining 2^N bits. With the remark + * from above, + * h * 2^N + l mod (2^N - 1) = l + h mod (2^N - 1). + * As both, l and h are less than 2^N, their sum after + * this first reduction is guaranteed to be <= 2^(N + 1) - 2. + * Or equivalently, that their sum can again be written as + * h' * 2^N + l' with h' now either zero or one and if one, + * then l' <= 2^N - 2. Thus, all bits at positions >= N will + * be zero after a second reduction: + * h' * 2^N + l' mod (2^N - 1) = l' + h' mod (2^N - 1). + * At this point, it is still possible that + * l' + h' = 2^N - 1, i.e. that l' + h' mod (2^N - 1) + * is zero. This condition will be detected below by means of + * the final increment overflowing in this case. + */ + h = be64_to_cpu(key[0]); + h = __add_u64_to_be(key + 1, n, h); + h = __add_u64_to_be(key + 1, n, h); + WARN_ON_ONCE(h); + + /* Increment to obtain the final result. */ + o = __add_u64_to_be(key + 1, n, 1); + /* + * The overflow bit o from the increment is either zero or + * one. If zero, key[1:n] holds the final result in big-endian + * order. If one, key[1:n] is zero now, but needs to be set to + * one, c.f. above. + */ + if (o) + key[n] = cpu_to_be64(1); + + /* n is in units of u64, convert to bytes. */ + *key_size = n << 3; + /* Strip the leading extra __be64, which is (virtually) zero by now. */ + memmove(key, &key[1], *key_size); + + return key; + +out_err: + kfree_sensitive(key); + return ERR_PTR(err); +} + +static int dh_safe_prime_set_secret(struct crypto_kpp *tfm, const void *buffer, + unsigned int len) +{ + struct dh_safe_prime_instance_ctx *inst_ctx = + dh_safe_prime_instance_ctx(tfm); + struct dh_safe_prime_tfm_ctx *tfm_ctx = kpp_tfm_ctx(tfm); + struct dh params = {}; + void *buf = NULL, *key = NULL; + unsigned int buf_size; + int err; + + if (buffer) { + err = __crypto_dh_decode_key(buffer, len, ¶ms); + if (err) + return err; + if (params.p_size || params.g_size) + return -EINVAL; + } + + params.p = inst_ctx->safe_prime->p; + params.p_size = inst_ctx->safe_prime->p_size; + params.g = safe_prime_g; + params.g_size = sizeof(safe_prime_g); + + if (!params.key_size) { + key = dh_safe_prime_gen_privkey(inst_ctx->safe_prime, + ¶ms.key_size); + if (IS_ERR(key)) + return PTR_ERR(key); + params.key = key; + } + + buf_size = crypto_dh_key_len(¶ms); + buf = kmalloc(buf_size, GFP_KERNEL); + if (!buf) { + err = -ENOMEM; + goto out; + } + + err = crypto_dh_encode_key(buf, buf_size, ¶ms); + if (err) + goto out; + + err = crypto_kpp_set_secret(tfm_ctx->dh_tfm, buf, buf_size); +out: + kfree_sensitive(buf); + kfree_sensitive(key); + return err; +} + +static void dh_safe_prime_complete_req(void *data, int err) +{ + struct kpp_request *req = data; + + kpp_request_complete(req, err); +} + +static struct kpp_request *dh_safe_prime_prepare_dh_req(struct kpp_request *req) +{ + struct dh_safe_prime_tfm_ctx *tfm_ctx = + kpp_tfm_ctx(crypto_kpp_reqtfm(req)); + struct kpp_request *dh_req = kpp_request_ctx(req); + + kpp_request_set_tfm(dh_req, tfm_ctx->dh_tfm); + kpp_request_set_callback(dh_req, req->base.flags, + dh_safe_prime_complete_req, req); + + kpp_request_set_input(dh_req, req->src, req->src_len); + kpp_request_set_output(dh_req, req->dst, req->dst_len); + + return dh_req; +} + +static int dh_safe_prime_generate_public_key(struct kpp_request *req) +{ + struct kpp_request *dh_req = dh_safe_prime_prepare_dh_req(req); + + return crypto_kpp_generate_public_key(dh_req); +} + +static int dh_safe_prime_compute_shared_secret(struct kpp_request *req) +{ + struct kpp_request *dh_req = dh_safe_prime_prepare_dh_req(req); + + return crypto_kpp_compute_shared_secret(dh_req); +} + +static unsigned int dh_safe_prime_max_size(struct crypto_kpp *tfm) +{ + struct dh_safe_prime_tfm_ctx *tfm_ctx = kpp_tfm_ctx(tfm); + + return crypto_kpp_maxsize(tfm_ctx->dh_tfm); +} + +static int __maybe_unused __dh_safe_prime_create( + struct crypto_template *tmpl, struct rtattr **tb, + const struct dh_safe_prime *safe_prime) +{ + struct kpp_instance *inst; + struct dh_safe_prime_instance_ctx *ctx; + const char *dh_name; + struct kpp_alg *dh_alg; + u32 mask; + int err; + + err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_KPP, &mask); + if (err) + return err; + + dh_name = crypto_attr_alg_name(tb[1]); + if (IS_ERR(dh_name)) + return PTR_ERR(dh_name); + + inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL); + if (!inst) + return -ENOMEM; + + ctx = kpp_instance_ctx(inst); + + err = crypto_grab_kpp(&ctx->dh_spawn, kpp_crypto_instance(inst), + dh_name, 0, mask); + if (err) + goto err_free_inst; + + err = -EINVAL; + dh_alg = crypto_spawn_kpp_alg(&ctx->dh_spawn); + if (strcmp(dh_alg->base.cra_name, "dh")) + goto err_free_inst; + + ctx->safe_prime = safe_prime; + + err = crypto_inst_setname(kpp_crypto_instance(inst), + tmpl->name, &dh_alg->base); + if (err) + goto err_free_inst; + + inst->alg.set_secret = dh_safe_prime_set_secret; + inst->alg.generate_public_key = dh_safe_prime_generate_public_key; + inst->alg.compute_shared_secret = dh_safe_prime_compute_shared_secret; + inst->alg.max_size = dh_safe_prime_max_size; + inst->alg.init = dh_safe_prime_init_tfm; + inst->alg.exit = dh_safe_prime_exit_tfm; + inst->alg.base.cra_priority = dh_alg->base.cra_priority; + inst->alg.base.cra_module = THIS_MODULE; + inst->alg.base.cra_ctxsize = sizeof(struct dh_safe_prime_tfm_ctx); + + inst->free = dh_safe_prime_free_instance; + + err = kpp_register_instance(tmpl, inst); + if (err) + goto err_free_inst; + + return 0; + +err_free_inst: + dh_safe_prime_free_instance(inst); + + return err; +} + +#ifdef CONFIG_CRYPTO_DH_RFC7919_GROUPS + +static const struct dh_safe_prime ffdhe2048_prime = { + .max_strength = 112, + .p_size = 256, + .p = + "\xff\xff\xff\xff\xff\xff\xff\xff\xad\xf8\x54\x58\xa2\xbb\x4a\x9a" + "\xaf\xdc\x56\x20\x27\x3d\x3c\xf1\xd8\xb9\xc5\x83\xce\x2d\x36\x95" + "\xa9\xe1\x36\x41\x14\x64\x33\xfb\xcc\x93\x9d\xce\x24\x9b\x3e\xf9" + "\x7d\x2f\xe3\x63\x63\x0c\x75\xd8\xf6\x81\xb2\x02\xae\xc4\x61\x7a" + "\xd3\xdf\x1e\xd5\xd5\xfd\x65\x61\x24\x33\xf5\x1f\x5f\x06\x6e\xd0" + "\x85\x63\x65\x55\x3d\xed\x1a\xf3\xb5\x57\x13\x5e\x7f\x57\xc9\x35" + "\x98\x4f\x0c\x70\xe0\xe6\x8b\x77\xe2\xa6\x89\xda\xf3\xef\xe8\x72" + "\x1d\xf1\x58\xa1\x36\xad\xe7\x35\x30\xac\xca\x4f\x48\x3a\x79\x7a" + "\xbc\x0a\xb1\x82\xb3\x24\xfb\x61\xd1\x08\xa9\x4b\xb2\xc8\xe3\xfb" + "\xb9\x6a\xda\xb7\x60\xd7\xf4\x68\x1d\x4f\x42\xa3\xde\x39\x4d\xf4" + "\xae\x56\xed\xe7\x63\x72\xbb\x19\x0b\x07\xa7\xc8\xee\x0a\x6d\x70" + "\x9e\x02\xfc\xe1\xcd\xf7\xe2\xec\xc0\x34\x04\xcd\x28\x34\x2f\x61" + "\x91\x72\xfe\x9c\xe9\x85\x83\xff\x8e\x4f\x12\x32\xee\xf2\x81\x83" + "\xc3\xfe\x3b\x1b\x4c\x6f\xad\x73\x3b\xb5\xfc\xbc\x2e\xc2\x20\x05" + "\xc5\x8e\xf1\x83\x7d\x16\x83\xb2\xc6\xf3\x4a\x26\xc1\xb2\xef\xfa" + "\x88\x6b\x42\x38\x61\x28\x5c\x97\xff\xff\xff\xff\xff\xff\xff\xff", +}; + +static const struct dh_safe_prime ffdhe3072_prime = { + .max_strength = 128, + .p_size = 384, + .p = + "\xff\xff\xff\xff\xff\xff\xff\xff\xad\xf8\x54\x58\xa2\xbb\x4a\x9a" + "\xaf\xdc\x56\x20\x27\x3d\x3c\xf1\xd8\xb9\xc5\x83\xce\x2d\x36\x95" + "\xa9\xe1\x36\x41\x14\x64\x33\xfb\xcc\x93\x9d\xce\x24\x9b\x3e\xf9" + "\x7d\x2f\xe3\x63\x63\x0c\x75\xd8\xf6\x81\xb2\x02\xae\xc4\x61\x7a" + "\xd3\xdf\x1e\xd5\xd5\xfd\x65\x61\x24\x33\xf5\x1f\x5f\x06\x6e\xd0" + "\x85\x63\x65\x55\x3d\xed\x1a\xf3\xb5\x57\x13\x5e\x7f\x57\xc9\x35" + "\x98\x4f\x0c\x70\xe0\xe6\x8b\x77\xe2\xa6\x89\xda\xf3\xef\xe8\x72" + "\x1d\xf1\x58\xa1\x36\xad\xe7\x35\x30\xac\xca\x4f\x48\x3a\x79\x7a" + "\xbc\x0a\xb1\x82\xb3\x24\xfb\x61\xd1\x08\xa9\x4b\xb2\xc8\xe3\xfb" + "\xb9\x6a\xda\xb7\x60\xd7\xf4\x68\x1d\x4f\x42\xa3\xde\x39\x4d\xf4" + "\xae\x56\xed\xe7\x63\x72\xbb\x19\x0b\x07\xa7\xc8\xee\x0a\x6d\x70" + "\x9e\x02\xfc\xe1\xcd\xf7\xe2\xec\xc0\x34\x04\xcd\x28\x34\x2f\x61" + "\x91\x72\xfe\x9c\xe9\x85\x83\xff\x8e\x4f\x12\x32\xee\xf2\x81\x83" + "\xc3\xfe\x3b\x1b\x4c\x6f\xad\x73\x3b\xb5\xfc\xbc\x2e\xc2\x20\x05" + "\xc5\x8e\xf1\x83\x7d\x16\x83\xb2\xc6\xf3\x4a\x26\xc1\xb2\xef\xfa" + "\x88\x6b\x42\x38\x61\x1f\xcf\xdc\xde\x35\x5b\x3b\x65\x19\x03\x5b" + "\xbc\x34\xf4\xde\xf9\x9c\x02\x38\x61\xb4\x6f\xc9\xd6\xe6\xc9\x07" + "\x7a\xd9\x1d\x26\x91\xf7\xf7\xee\x59\x8c\xb0\xfa\xc1\x86\xd9\x1c" + "\xae\xfe\x13\x09\x85\x13\x92\x70\xb4\x13\x0c\x93\xbc\x43\x79\x44" + "\xf4\xfd\x44\x52\xe2\xd7\x4d\xd3\x64\xf2\xe2\x1e\x71\xf5\x4b\xff" + "\x5c\xae\x82\xab\x9c\x9d\xf6\x9e\xe8\x6d\x2b\xc5\x22\x36\x3a\x0d" + "\xab\xc5\x21\x97\x9b\x0d\xea\xda\x1d\xbf\x9a\x42\xd5\xc4\x48\x4e" + "\x0a\xbc\xd0\x6b\xfa\x53\xdd\xef\x3c\x1b\x20\xee\x3f\xd5\x9d\x7c" + "\x25\xe4\x1d\x2b\x66\xc6\x2e\x37\xff\xff\xff\xff\xff\xff\xff\xff", +}; + +static const struct dh_safe_prime ffdhe4096_prime = { + .max_strength = 152, + .p_size = 512, + .p = + "\xff\xff\xff\xff\xff\xff\xff\xff\xad\xf8\x54\x58\xa2\xbb\x4a\x9a" + "\xaf\xdc\x56\x20\x27\x3d\x3c\xf1\xd8\xb9\xc5\x83\xce\x2d\x36\x95" + "\xa9\xe1\x36\x41\x14\x64\x33\xfb\xcc\x93\x9d\xce\x24\x9b\x3e\xf9" + "\x7d\x2f\xe3\x63\x63\x0c\x75\xd8\xf6\x81\xb2\x02\xae\xc4\x61\x7a" + "\xd3\xdf\x1e\xd5\xd5\xfd\x65\x61\x24\x33\xf5\x1f\x5f\x06\x6e\xd0" + "\x85\x63\x65\x55\x3d\xed\x1a\xf3\xb5\x57\x13\x5e\x7f\x57\xc9\x35" + "\x98\x4f\x0c\x70\xe0\xe6\x8b\x77\xe2\xa6\x89\xda\xf3\xef\xe8\x72" + "\x1d\xf1\x58\xa1\x36\xad\xe7\x35\x30\xac\xca\x4f\x48\x3a\x79\x7a" + "\xbc\x0a\xb1\x82\xb3\x24\xfb\x61\xd1\x08\xa9\x4b\xb2\xc8\xe3\xfb" + "\xb9\x6a\xda\xb7\x60\xd7\xf4\x68\x1d\x4f\x42\xa3\xde\x39\x4d\xf4" + "\xae\x56\xed\xe7\x63\x72\xbb\x19\x0b\x07\xa7\xc8\xee\x0a\x6d\x70" + "\x9e\x02\xfc\xe1\xcd\xf7\xe2\xec\xc0\x34\x04\xcd\x28\x34\x2f\x61" + "\x91\x72\xfe\x9c\xe9\x85\x83\xff\x8e\x4f\x12\x32\xee\xf2\x81\x83" + "\xc3\xfe\x3b\x1b\x4c\x6f\xad\x73\x3b\xb5\xfc\xbc\x2e\xc2\x20\x05" + "\xc5\x8e\xf1\x83\x7d\x16\x83\xb2\xc6\xf3\x4a\x26\xc1\xb2\xef\xfa" + "\x88\x6b\x42\x38\x61\x1f\xcf\xdc\xde\x35\x5b\x3b\x65\x19\x03\x5b" + "\xbc\x34\xf4\xde\xf9\x9c\x02\x38\x61\xb4\x6f\xc9\xd6\xe6\xc9\x07" + "\x7a\xd9\x1d\x26\x91\xf7\xf7\xee\x59\x8c\xb0\xfa\xc1\x86\xd9\x1c" + "\xae\xfe\x13\x09\x85\x13\x92\x70\xb4\x13\x0c\x93\xbc\x43\x79\x44" + "\xf4\xfd\x44\x52\xe2\xd7\x4d\xd3\x64\xf2\xe2\x1e\x71\xf5\x4b\xff" + "\x5c\xae\x82\xab\x9c\x9d\xf6\x9e\xe8\x6d\x2b\xc5\x22\x36\x3a\x0d" + "\xab\xc5\x21\x97\x9b\x0d\xea\xda\x1d\xbf\x9a\x42\xd5\xc4\x48\x4e" + "\x0a\xbc\xd0\x6b\xfa\x53\xdd\xef\x3c\x1b\x20\xee\x3f\xd5\x9d\x7c" + "\x25\xe4\x1d\x2b\x66\x9e\x1e\xf1\x6e\x6f\x52\xc3\x16\x4d\xf4\xfb" + "\x79\x30\xe9\xe4\xe5\x88\x57\xb6\xac\x7d\x5f\x42\xd6\x9f\x6d\x18" + "\x77\x63\xcf\x1d\x55\x03\x40\x04\x87\xf5\x5b\xa5\x7e\x31\xcc\x7a" + "\x71\x35\xc8\x86\xef\xb4\x31\x8a\xed\x6a\x1e\x01\x2d\x9e\x68\x32" + "\xa9\x07\x60\x0a\x91\x81\x30\xc4\x6d\xc7\x78\xf9\x71\xad\x00\x38" + "\x09\x29\x99\xa3\x33\xcb\x8b\x7a\x1a\x1d\xb9\x3d\x71\x40\x00\x3c" + "\x2a\x4e\xce\xa9\xf9\x8d\x0a\xcc\x0a\x82\x91\xcd\xce\xc9\x7d\xcf" + "\x8e\xc9\xb5\x5a\x7f\x88\xa4\x6b\x4d\xb5\xa8\x51\xf4\x41\x82\xe1" + "\xc6\x8a\x00\x7e\x5e\x65\x5f\x6a\xff\xff\xff\xff\xff\xff\xff\xff", +}; + +static const struct dh_safe_prime ffdhe6144_prime = { + .max_strength = 176, + .p_size = 768, + .p = + "\xff\xff\xff\xff\xff\xff\xff\xff\xad\xf8\x54\x58\xa2\xbb\x4a\x9a" + "\xaf\xdc\x56\x20\x27\x3d\x3c\xf1\xd8\xb9\xc5\x83\xce\x2d\x36\x95" + "\xa9\xe1\x36\x41\x14\x64\x33\xfb\xcc\x93\x9d\xce\x24\x9b\x3e\xf9" + "\x7d\x2f\xe3\x63\x63\x0c\x75\xd8\xf6\x81\xb2\x02\xae\xc4\x61\x7a" + "\xd3\xdf\x1e\xd5\xd5\xfd\x65\x61\x24\x33\xf5\x1f\x5f\x06\x6e\xd0" + "\x85\x63\x65\x55\x3d\xed\x1a\xf3\xb5\x57\x13\x5e\x7f\x57\xc9\x35" + "\x98\x4f\x0c\x70\xe0\xe6\x8b\x77\xe2\xa6\x89\xda\xf3\xef\xe8\x72" + "\x1d\xf1\x58\xa1\x36\xad\xe7\x35\x30\xac\xca\x4f\x48\x3a\x79\x7a" + "\xbc\x0a\xb1\x82\xb3\x24\xfb\x61\xd1\x08\xa9\x4b\xb2\xc8\xe3\xfb" + "\xb9\x6a\xda\xb7\x60\xd7\xf4\x68\x1d\x4f\x42\xa3\xde\x39\x4d\xf4" + "\xae\x56\xed\xe7\x63\x72\xbb\x19\x0b\x07\xa7\xc8\xee\x0a\x6d\x70" + "\x9e\x02\xfc\xe1\xcd\xf7\xe2\xec\xc0\x34\x04\xcd\x28\x34\x2f\x61" + "\x91\x72\xfe\x9c\xe9\x85\x83\xff\x8e\x4f\x12\x32\xee\xf2\x81\x83" + "\xc3\xfe\x3b\x1b\x4c\x6f\xad\x73\x3b\xb5\xfc\xbc\x2e\xc2\x20\x05" + "\xc5\x8e\xf1\x83\x7d\x16\x83\xb2\xc6\xf3\x4a\x26\xc1\xb2\xef\xfa" + "\x88\x6b\x42\x38\x61\x1f\xcf\xdc\xde\x35\x5b\x3b\x65\x19\x03\x5b" + "\xbc\x34\xf4\xde\xf9\x9c\x02\x38\x61\xb4\x6f\xc9\xd6\xe6\xc9\x07" + "\x7a\xd9\x1d\x26\x91\xf7\xf7\xee\x59\x8c\xb0\xfa\xc1\x86\xd9\x1c" + "\xae\xfe\x13\x09\x85\x13\x92\x70\xb4\x13\x0c\x93\xbc\x43\x79\x44" + "\xf4\xfd\x44\x52\xe2\xd7\x4d\xd3\x64\xf2\xe2\x1e\x71\xf5\x4b\xff" + "\x5c\xae\x82\xab\x9c\x9d\xf6\x9e\xe8\x6d\x2b\xc5\x22\x36\x3a\x0d" + "\xab\xc5\x21\x97\x9b\x0d\xea\xda\x1d\xbf\x9a\x42\xd5\xc4\x48\x4e" + "\x0a\xbc\xd0\x6b\xfa\x53\xdd\xef\x3c\x1b\x20\xee\x3f\xd5\x9d\x7c" + "\x25\xe4\x1d\x2b\x66\x9e\x1e\xf1\x6e\x6f\x52\xc3\x16\x4d\xf4\xfb" + "\x79\x30\xe9\xe4\xe5\x88\x57\xb6\xac\x7d\x5f\x42\xd6\x9f\x6d\x18" + "\x77\x63\xcf\x1d\x55\x03\x40\x04\x87\xf5\x5b\xa5\x7e\x31\xcc\x7a" + "\x71\x35\xc8\x86\xef\xb4\x31\x8a\xed\x6a\x1e\x01\x2d\x9e\x68\x32" + "\xa9\x07\x60\x0a\x91\x81\x30\xc4\x6d\xc7\x78\xf9\x71\xad\x00\x38" + "\x09\x29\x99\xa3\x33\xcb\x8b\x7a\x1a\x1d\xb9\x3d\x71\x40\x00\x3c" + "\x2a\x4e\xce\xa9\xf9\x8d\x0a\xcc\x0a\x82\x91\xcd\xce\xc9\x7d\xcf" + "\x8e\xc9\xb5\x5a\x7f\x88\xa4\x6b\x4d\xb5\xa8\x51\xf4\x41\x82\xe1" + "\xc6\x8a\x00\x7e\x5e\x0d\xd9\x02\x0b\xfd\x64\xb6\x45\x03\x6c\x7a" + "\x4e\x67\x7d\x2c\x38\x53\x2a\x3a\x23\xba\x44\x42\xca\xf5\x3e\xa6" + "\x3b\xb4\x54\x32\x9b\x76\x24\xc8\x91\x7b\xdd\x64\xb1\xc0\xfd\x4c" + "\xb3\x8e\x8c\x33\x4c\x70\x1c\x3a\xcd\xad\x06\x57\xfc\xcf\xec\x71" + "\x9b\x1f\x5c\x3e\x4e\x46\x04\x1f\x38\x81\x47\xfb\x4c\xfd\xb4\x77" + "\xa5\x24\x71\xf7\xa9\xa9\x69\x10\xb8\x55\x32\x2e\xdb\x63\x40\xd8" + "\xa0\x0e\xf0\x92\x35\x05\x11\xe3\x0a\xbe\xc1\xff\xf9\xe3\xa2\x6e" + "\x7f\xb2\x9f\x8c\x18\x30\x23\xc3\x58\x7e\x38\xda\x00\x77\xd9\xb4" + "\x76\x3e\x4e\x4b\x94\xb2\xbb\xc1\x94\xc6\x65\x1e\x77\xca\xf9\x92" + "\xee\xaa\xc0\x23\x2a\x28\x1b\xf6\xb3\xa7\x39\xc1\x22\x61\x16\x82" + "\x0a\xe8\xdb\x58\x47\xa6\x7c\xbe\xf9\xc9\x09\x1b\x46\x2d\x53\x8c" + "\xd7\x2b\x03\x74\x6a\xe7\x7f\x5e\x62\x29\x2c\x31\x15\x62\xa8\x46" + "\x50\x5d\xc8\x2d\xb8\x54\x33\x8a\xe4\x9f\x52\x35\xc9\x5b\x91\x17" + "\x8c\xcf\x2d\xd5\xca\xce\xf4\x03\xec\x9d\x18\x10\xc6\x27\x2b\x04" + "\x5b\x3b\x71\xf9\xdc\x6b\x80\xd6\x3f\xdd\x4a\x8e\x9a\xdb\x1e\x69" + "\x62\xa6\x95\x26\xd4\x31\x61\xc1\xa4\x1d\x57\x0d\x79\x38\xda\xd4" + "\xa4\x0e\x32\x9c\xd0\xe4\x0e\x65\xff\xff\xff\xff\xff\xff\xff\xff", +}; + +static const struct dh_safe_prime ffdhe8192_prime = { + .max_strength = 200, + .p_size = 1024, + .p = + "\xff\xff\xff\xff\xff\xff\xff\xff\xad\xf8\x54\x58\xa2\xbb\x4a\x9a" + "\xaf\xdc\x56\x20\x27\x3d\x3c\xf1\xd8\xb9\xc5\x83\xce\x2d\x36\x95" + "\xa9\xe1\x36\x41\x14\x64\x33\xfb\xcc\x93\x9d\xce\x24\x9b\x3e\xf9" + "\x7d\x2f\xe3\x63\x63\x0c\x75\xd8\xf6\x81\xb2\x02\xae\xc4\x61\x7a" + "\xd3\xdf\x1e\xd5\xd5\xfd\x65\x61\x24\x33\xf5\x1f\x5f\x06\x6e\xd0" + "\x85\x63\x65\x55\x3d\xed\x1a\xf3\xb5\x57\x13\x5e\x7f\x57\xc9\x35" + "\x98\x4f\x0c\x70\xe0\xe6\x8b\x77\xe2\xa6\x89\xda\xf3\xef\xe8\x72" + "\x1d\xf1\x58\xa1\x36\xad\xe7\x35\x30\xac\xca\x4f\x48\x3a\x79\x7a" + "\xbc\x0a\xb1\x82\xb3\x24\xfb\x61\xd1\x08\xa9\x4b\xb2\xc8\xe3\xfb" + "\xb9\x6a\xda\xb7\x60\xd7\xf4\x68\x1d\x4f\x42\xa3\xde\x39\x4d\xf4" + "\xae\x56\xed\xe7\x63\x72\xbb\x19\x0b\x07\xa7\xc8\xee\x0a\x6d\x70" + "\x9e\x02\xfc\xe1\xcd\xf7\xe2\xec\xc0\x34\x04\xcd\x28\x34\x2f\x61" + "\x91\x72\xfe\x9c\xe9\x85\x83\xff\x8e\x4f\x12\x32\xee\xf2\x81\x83" + "\xc3\xfe\x3b\x1b\x4c\x6f\xad\x73\x3b\xb5\xfc\xbc\x2e\xc2\x20\x05" + "\xc5\x8e\xf1\x83\x7d\x16\x83\xb2\xc6\xf3\x4a\x26\xc1\xb2\xef\xfa" + "\x88\x6b\x42\x38\x61\x1f\xcf\xdc\xde\x35\x5b\x3b\x65\x19\x03\x5b" + "\xbc\x34\xf4\xde\xf9\x9c\x02\x38\x61\xb4\x6f\xc9\xd6\xe6\xc9\x07" + "\x7a\xd9\x1d\x26\x91\xf7\xf7\xee\x59\x8c\xb0\xfa\xc1\x86\xd9\x1c" + "\xae\xfe\x13\x09\x85\x13\x92\x70\xb4\x13\x0c\x93\xbc\x43\x79\x44" + "\xf4\xfd\x44\x52\xe2\xd7\x4d\xd3\x64\xf2\xe2\x1e\x71\xf5\x4b\xff" + "\x5c\xae\x82\xab\x9c\x9d\xf6\x9e\xe8\x6d\x2b\xc5\x22\x36\x3a\x0d" + "\xab\xc5\x21\x97\x9b\x0d\xea\xda\x1d\xbf\x9a\x42\xd5\xc4\x48\x4e" + "\x0a\xbc\xd0\x6b\xfa\x53\xdd\xef\x3c\x1b\x20\xee\x3f\xd5\x9d\x7c" + "\x25\xe4\x1d\x2b\x66\x9e\x1e\xf1\x6e\x6f\x52\xc3\x16\x4d\xf4\xfb" + "\x79\x30\xe9\xe4\xe5\x88\x57\xb6\xac\x7d\x5f\x42\xd6\x9f\x6d\x18" + "\x77\x63\xcf\x1d\x55\x03\x40\x04\x87\xf5\x5b\xa5\x7e\x31\xcc\x7a" + "\x71\x35\xc8\x86\xef\xb4\x31\x8a\xed\x6a\x1e\x01\x2d\x9e\x68\x32" + "\xa9\x07\x60\x0a\x91\x81\x30\xc4\x6d\xc7\x78\xf9\x71\xad\x00\x38" + "\x09\x29\x99\xa3\x33\xcb\x8b\x7a\x1a\x1d\xb9\x3d\x71\x40\x00\x3c" + "\x2a\x4e\xce\xa9\xf9\x8d\x0a\xcc\x0a\x82\x91\xcd\xce\xc9\x7d\xcf" + "\x8e\xc9\xb5\x5a\x7f\x88\xa4\x6b\x4d\xb5\xa8\x51\xf4\x41\x82\xe1" + "\xc6\x8a\x00\x7e\x5e\x0d\xd9\x02\x0b\xfd\x64\xb6\x45\x03\x6c\x7a" + "\x4e\x67\x7d\x2c\x38\x53\x2a\x3a\x23\xba\x44\x42\xca\xf5\x3e\xa6" + "\x3b\xb4\x54\x32\x9b\x76\x24\xc8\x91\x7b\xdd\x64\xb1\xc0\xfd\x4c" + "\xb3\x8e\x8c\x33\x4c\x70\x1c\x3a\xcd\xad\x06\x57\xfc\xcf\xec\x71" + "\x9b\x1f\x5c\x3e\x4e\x46\x04\x1f\x38\x81\x47\xfb\x4c\xfd\xb4\x77" + "\xa5\x24\x71\xf7\xa9\xa9\x69\x10\xb8\x55\x32\x2e\xdb\x63\x40\xd8" + "\xa0\x0e\xf0\x92\x35\x05\x11\xe3\x0a\xbe\xc1\xff\xf9\xe3\xa2\x6e" + "\x7f\xb2\x9f\x8c\x18\x30\x23\xc3\x58\x7e\x38\xda\x00\x77\xd9\xb4" + "\x76\x3e\x4e\x4b\x94\xb2\xbb\xc1\x94\xc6\x65\x1e\x77\xca\xf9\x92" + "\xee\xaa\xc0\x23\x2a\x28\x1b\xf6\xb3\xa7\x39\xc1\x22\x61\x16\x82" + "\x0a\xe8\xdb\x58\x47\xa6\x7c\xbe\xf9\xc9\x09\x1b\x46\x2d\x53\x8c" + "\xd7\x2b\x03\x74\x6a\xe7\x7f\x5e\x62\x29\x2c\x31\x15\x62\xa8\x46" + "\x50\x5d\xc8\x2d\xb8\x54\x33\x8a\xe4\x9f\x52\x35\xc9\x5b\x91\x17" + "\x8c\xcf\x2d\xd5\xca\xce\xf4\x03\xec\x9d\x18\x10\xc6\x27\x2b\x04" + "\x5b\x3b\x71\xf9\xdc\x6b\x80\xd6\x3f\xdd\x4a\x8e\x9a\xdb\x1e\x69" + "\x62\xa6\x95\x26\xd4\x31\x61\xc1\xa4\x1d\x57\x0d\x79\x38\xda\xd4" + "\xa4\x0e\x32\x9c\xcf\xf4\x6a\xaa\x36\xad\x00\x4c\xf6\x00\xc8\x38" + "\x1e\x42\x5a\x31\xd9\x51\xae\x64\xfd\xb2\x3f\xce\xc9\x50\x9d\x43" + "\x68\x7f\xeb\x69\xed\xd1\xcc\x5e\x0b\x8c\xc3\xbd\xf6\x4b\x10\xef" + "\x86\xb6\x31\x42\xa3\xab\x88\x29\x55\x5b\x2f\x74\x7c\x93\x26\x65" + "\xcb\x2c\x0f\x1c\xc0\x1b\xd7\x02\x29\x38\x88\x39\xd2\xaf\x05\xe4" + "\x54\x50\x4a\xc7\x8b\x75\x82\x82\x28\x46\xc0\xba\x35\xc3\x5f\x5c" + "\x59\x16\x0c\xc0\x46\xfd\x82\x51\x54\x1f\xc6\x8c\x9c\x86\xb0\x22" + "\xbb\x70\x99\x87\x6a\x46\x0e\x74\x51\xa8\xa9\x31\x09\x70\x3f\xee" + "\x1c\x21\x7e\x6c\x38\x26\xe5\x2c\x51\xaa\x69\x1e\x0e\x42\x3c\xfc" + "\x99\xe9\xe3\x16\x50\xc1\x21\x7b\x62\x48\x16\xcd\xad\x9a\x95\xf9" + "\xd5\xb8\x01\x94\x88\xd9\xc0\xa0\xa1\xfe\x30\x75\xa5\x77\xe2\x31" + "\x83\xf8\x1d\x4a\x3f\x2f\xa4\x57\x1e\xfc\x8c\xe0\xba\x8a\x4f\xe8" + "\xb6\x85\x5d\xfe\x72\xb0\xa6\x6e\xde\xd2\xfb\xab\xfb\xe5\x8a\x30" + "\xfa\xfa\xbe\x1c\x5d\x71\xa8\x7e\x2f\x74\x1e\xf8\xc1\xfe\x86\xfe" + "\xa6\xbb\xfd\xe5\x30\x67\x7f\x0d\x97\xd1\x1d\x49\xf7\xa8\x44\x3d" + "\x08\x22\xe5\x06\xa9\xf4\x61\x4e\x01\x1e\x2a\x94\x83\x8f\xf8\x8c" + "\xd6\x8c\x8b\xb7\xc5\xc6\x42\x4c\xff\xff\xff\xff\xff\xff\xff\xff", +}; + +static int dh_ffdhe2048_create(struct crypto_template *tmpl, + struct rtattr **tb) +{ + return __dh_safe_prime_create(tmpl, tb, &ffdhe2048_prime); +} + +static int dh_ffdhe3072_create(struct crypto_template *tmpl, + struct rtattr **tb) +{ + return __dh_safe_prime_create(tmpl, tb, &ffdhe3072_prime); +} + +static int dh_ffdhe4096_create(struct crypto_template *tmpl, + struct rtattr **tb) +{ + return __dh_safe_prime_create(tmpl, tb, &ffdhe4096_prime); +} + +static int dh_ffdhe6144_create(struct crypto_template *tmpl, + struct rtattr **tb) +{ + return __dh_safe_prime_create(tmpl, tb, &ffdhe6144_prime); +} + +static int dh_ffdhe8192_create(struct crypto_template *tmpl, + struct rtattr **tb) +{ + return __dh_safe_prime_create(tmpl, tb, &ffdhe8192_prime); +} + +static struct crypto_template crypto_ffdhe_templates[] = { + { + .name = "ffdhe2048", + .create = dh_ffdhe2048_create, + .module = THIS_MODULE, + }, + { + .name = "ffdhe3072", + .create = dh_ffdhe3072_create, + .module = THIS_MODULE, + }, + { + .name = "ffdhe4096", + .create = dh_ffdhe4096_create, + .module = THIS_MODULE, + }, + { + .name = "ffdhe6144", + .create = dh_ffdhe6144_create, + .module = THIS_MODULE, + }, + { + .name = "ffdhe8192", + .create = dh_ffdhe8192_create, + .module = THIS_MODULE, + }, +}; + +#else /* ! CONFIG_CRYPTO_DH_RFC7919_GROUPS */ + +static struct crypto_template crypto_ffdhe_templates[] = {}; + +#endif /* CONFIG_CRYPTO_DH_RFC7919_GROUPS */ + + +static int __init dh_init(void) +{ + int err; + + err = crypto_register_kpp(&dh); + if (err) + return err; + + err = crypto_register_templates(crypto_ffdhe_templates, + ARRAY_SIZE(crypto_ffdhe_templates)); + if (err) { + crypto_unregister_kpp(&dh); + return err; + } + + return 0; +} + +static void __exit dh_exit(void) +{ + crypto_unregister_templates(crypto_ffdhe_templates, + ARRAY_SIZE(crypto_ffdhe_templates)); + crypto_unregister_kpp(&dh); +} + +subsys_initcall(dh_init); +module_exit(dh_exit); +MODULE_ALIAS_CRYPTO("dh"); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("DH generic algorithm"); -- cgit v1.2.3