74 	struct ecrdsa_ctx *ctx = akcipher_tfm_ctx(tfm);  in ecrdsa_verify()  local
92 	if (!ctx->curve ||  in ecrdsa_verify()
93 	    !ctx->digest ||  in ecrdsa_verify()
95 	    !ctx->pub_key.x ||  in ecrdsa_verify()
96 	    req->dst_len != ctx->digest_len ||  in ecrdsa_verify()
97 	    req->dst_len != ctx->curve->g.ndigits * sizeof(u64) ||  in ecrdsa_verify()
98 	    ctx->pub_key.ndigits != ctx->curve->g.ndigits ||  in ecrdsa_verify()
116 	    vli_cmp(r, ctx->curve->n, ndigits) >= 0 ||  in ecrdsa_verify()
118 	    vli_cmp(s, ctx->curve->n, ndigits) >= 0)  in ecrdsa_verify()
124 	if (vli_cmp(e, ctx->curve->n, ndigits) >= 0)  in ecrdsa_verify()
125 		vli_sub(e, e, ctx->curve->n, ndigits);  in ecrdsa_verify()
130 	vli_mod_inv(v, e, ctx->curve->n, ndigits);  in ecrdsa_verify()
133 	vli_mod_mult_slow(z1, s, v, ctx->curve->n, ndigits);  in ecrdsa_verify()
134 	vli_sub(_r, ctx->curve->n, r, ndigits);  in ecrdsa_verify()
135 	vli_mod_mult_slow(z2, _r, v, ctx->curve->n, ndigits);  in ecrdsa_verify()
138 	ecc_point_mult_shamir(&cc, z1, &ctx->curve->g, z2, &ctx->pub_key,  in ecrdsa_verify()
139 			      ctx->curve);  in ecrdsa_verify()
140 	if (vli_cmp(cc.x, ctx->curve->n, ndigits) >= 0)  in ecrdsa_verify()
141 		vli_sub(cc.x, cc.x, ctx->curve->n, ndigits);  in ecrdsa_verify()
153 	struct ecrdsa_ctx *ctx = context;  in ecrdsa_param_curve()  local
155 	ctx->curve_oid = look_up_OID(value, vlen);  in ecrdsa_param_curve()
156 	if (!ctx->curve_oid)  in ecrdsa_param_curve()
158 	ctx->curve = get_curve_by_oid(ctx->curve_oid);  in ecrdsa_param_curve()
166 	struct ecrdsa_ctx *ctx = context;  in ecrdsa_param_digest()  local
169 	if (digest_oid != ctx->digest_oid)  in ecrdsa_param_digest()
177 	struct ecrdsa_ctx *ctx = context;  in ecrdsa_parse_pub_key()  local
179 	ctx->key = value;  in ecrdsa_parse_pub_key()
180 	ctx->key_len = vlen;  in ecrdsa_parse_pub_key()
194 	struct ecrdsa_ctx *ctx = akcipher_tfm_ctx(tfm);  in ecrdsa_set_pub_key()  local
200 	err = asn1_ber_decoder(&ecrdsa_pub_key_decoder, ctx, key, keylen);  in ecrdsa_set_pub_key()
209 		ctx->digest	= "streebog256";  in ecrdsa_set_pub_key()
210 		ctx->digest_oid	= OID_gost2012Digest256;  in ecrdsa_set_pub_key()
211 		ctx->digest_len	= 256 / 8;  in ecrdsa_set_pub_key()
213 		ctx->digest	= "streebog512";  in ecrdsa_set_pub_key()
214 		ctx->digest_oid	= OID_gost2012Digest512;  in ecrdsa_set_pub_key()
215 		ctx->digest_len	= 512 / 8;  in ecrdsa_set_pub_key()
218 	ctx->algo_oid = algo;  in ecrdsa_set_pub_key()
221 	err = asn1_ber_decoder(&ecrdsa_params_decoder, ctx, params, paramlen);  in ecrdsa_set_pub_key()
228 	if (!ctx->curve ||  in ecrdsa_set_pub_key()
229 	    ctx->curve->g.ndigits * sizeof(u64) != ctx->digest_len)  in ecrdsa_set_pub_key()
235 	if ((ctx->key_len != (2 * 256 / 8) &&  in ecrdsa_set_pub_key()
236 	     ctx->key_len != (2 * 512 / 8)) ||  in ecrdsa_set_pub_key()
237 	    ctx->key_len != ctx->curve->g.ndigits * sizeof(u64) * 2)  in ecrdsa_set_pub_key()
240 	ndigits = ctx->key_len / sizeof(u64) / 2;  in ecrdsa_set_pub_key()
241 	ctx->pub_key = ECC_POINT_INIT(ctx->_pubp[0], ctx->_pubp[1], ndigits);  in ecrdsa_set_pub_key()
242 	vli_from_le64(ctx->pub_key.x, ctx->key, ndigits);  in ecrdsa_set_pub_key()
243 	vli_from_le64(ctx->pub_key.y, ctx->key + ndigits * sizeof(u64),  in ecrdsa_set_pub_key()
246 	if (ecc_is_pubkey_valid_partial(ctx->curve, &ctx->pub_key))  in ecrdsa_set_pub_key()
254 	struct ecrdsa_ctx *ctx = akcipher_tfm_ctx(tfm);  in ecrdsa_max_size()  local
260 	return ctx->pub_key.ndigits * sizeof(u64);  in ecrdsa_max_size()