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crypto/rsa-pkcs1pad.c
17.3 KB
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// SPDX-License-Identifier: GPL-2.0-or-later |
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/* * RSA padding templates. * * Copyright (c) 2015 Intel Corporation |
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*/ #include <crypto/algapi.h> #include <crypto/akcipher.h> #include <crypto/internal/akcipher.h> |
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#include <crypto/internal/rsa.h> |
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#include <linux/err.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/random.h> |
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#include <linux/scatterlist.h> |
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/* * Hash algorithm OIDs plus ASN.1 DER wrappings [RFC4880 sec 5.2.2]. */ static const u8 rsa_digest_info_md5[] = { 0x30, 0x20, 0x30, 0x0c, 0x06, 0x08, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x02, 0x05, /* OID */ 0x05, 0x00, 0x04, 0x10 }; static const u8 rsa_digest_info_sha1[] = { 0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2b, 0x0e, 0x03, 0x02, 0x1a, 0x05, 0x00, 0x04, 0x14 }; static const u8 rsa_digest_info_rmd160[] = { 0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2b, 0x24, 0x03, 0x02, 0x01, 0x05, 0x00, 0x04, 0x14 }; static const u8 rsa_digest_info_sha224[] = { 0x30, 0x2d, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x04, 0x05, 0x00, 0x04, 0x1c }; static const u8 rsa_digest_info_sha256[] = { 0x30, 0x31, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01, 0x05, 0x00, 0x04, 0x20 }; static const u8 rsa_digest_info_sha384[] = { 0x30, 0x41, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x02, 0x05, 0x00, 0x04, 0x30 }; static const u8 rsa_digest_info_sha512[] = { 0x30, 0x51, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x03, 0x05, 0x00, 0x04, 0x40 }; static const struct rsa_asn1_template { const char *name; const u8 *data; size_t size; } rsa_asn1_templates[] = { #define _(X) { #X, rsa_digest_info_##X, sizeof(rsa_digest_info_##X) } _(md5), _(sha1), _(rmd160), _(sha256), _(sha384), _(sha512), _(sha224), { NULL } #undef _ }; static const struct rsa_asn1_template *rsa_lookup_asn1(const char *name) { const struct rsa_asn1_template *p; for (p = rsa_asn1_templates; p->name; p++) if (strcmp(name, p->name) == 0) return p; return NULL; } |
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struct pkcs1pad_ctx { struct crypto_akcipher *child; |
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unsigned int key_size; }; |
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struct pkcs1pad_inst_ctx { struct crypto_akcipher_spawn spawn; |
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const struct rsa_asn1_template *digest_info; |
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}; |
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struct pkcs1pad_request { |
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struct scatterlist in_sg[2], out_sg[1]; |
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uint8_t *in_buf, *out_buf; |
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struct akcipher_request child_req; |
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}; static int pkcs1pad_set_pub_key(struct crypto_akcipher *tfm, const void *key, unsigned int keylen) { struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm); |
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int err; ctx->key_size = 0; |
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err = crypto_akcipher_set_pub_key(ctx->child, key, keylen); |
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if (err) return err; |
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|
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/* Find out new modulus size from rsa implementation */ err = crypto_akcipher_maxsize(ctx->child); |
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if (err > PAGE_SIZE) return -ENOTSUPP; |
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|
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ctx->key_size = err; return 0; |
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} static int pkcs1pad_set_priv_key(struct crypto_akcipher *tfm, const void *key, unsigned int keylen) { struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm); |
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int err; ctx->key_size = 0; |
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err = crypto_akcipher_set_priv_key(ctx->child, key, keylen); |
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if (err) return err; |
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/* Find out new modulus size from rsa implementation */ err = crypto_akcipher_maxsize(ctx->child); |
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if (err > PAGE_SIZE) return -ENOTSUPP; |
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ctx->key_size = err; return 0; |
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} |
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static unsigned int pkcs1pad_get_max_size(struct crypto_akcipher *tfm) |
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{ struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm); /* * The maximum destination buffer size for the encrypt/sign operations * will be the same as for RSA, even though it's smaller for * decrypt/verify. */ |
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return ctx->key_size; |
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} static void pkcs1pad_sg_set_buf(struct scatterlist *sg, void *buf, size_t len, struct scatterlist *next) { |
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int nsegs = next ? 2 : 1; sg_init_table(sg, nsegs); sg_set_buf(sg, buf, len); |
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if (next) sg_chain(sg, nsegs, next); } static int pkcs1pad_encrypt_sign_complete(struct akcipher_request *req, int err) { struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req); struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm); struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req); |
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unsigned int pad_len; unsigned int len; u8 *out_buf; if (err) goto out; len = req_ctx->child_req.dst_len; pad_len = ctx->key_size - len; /* Four billion to one */ if (likely(!pad_len)) goto out; |
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out_buf = kzalloc(ctx->key_size, GFP_KERNEL); |
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err = -ENOMEM; if (!out_buf) goto out; sg_copy_to_buffer(req->dst, sg_nents_for_len(req->dst, len), out_buf + pad_len, len); sg_copy_from_buffer(req->dst, sg_nents_for_len(req->dst, ctx->key_size), out_buf, ctx->key_size); |
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kfree_sensitive(out_buf); |
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out: |
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req->dst_len = ctx->key_size; kfree(req_ctx->in_buf); |
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return err; } static void pkcs1pad_encrypt_sign_complete_cb( struct crypto_async_request *child_async_req, int err) { struct akcipher_request *req = child_async_req->data; struct crypto_async_request async_req; if (err == -EINPROGRESS) return; async_req.data = req->base.data; async_req.tfm = crypto_akcipher_tfm(crypto_akcipher_reqtfm(req)); async_req.flags = child_async_req->flags; req->base.complete(&async_req, pkcs1pad_encrypt_sign_complete(req, err)); } static int pkcs1pad_encrypt(struct akcipher_request *req) { struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req); struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm); struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req); int err; unsigned int i, ps_end; if (!ctx->key_size) return -EINVAL; if (req->src_len > ctx->key_size - 11) return -EOVERFLOW; if (req->dst_len < ctx->key_size) { req->dst_len = ctx->key_size; return -EOVERFLOW; } |
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req_ctx->in_buf = kmalloc(ctx->key_size - 1 - req->src_len, |
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GFP_KERNEL); |
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if (!req_ctx->in_buf) return -ENOMEM; ps_end = ctx->key_size - req->src_len - 2; req_ctx->in_buf[0] = 0x02; for (i = 1; i < ps_end; i++) req_ctx->in_buf[i] = 1 + prandom_u32_max(255); req_ctx->in_buf[ps_end] = 0x00; pkcs1pad_sg_set_buf(req_ctx->in_sg, req_ctx->in_buf, ctx->key_size - 1 - req->src_len, req->src); |
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akcipher_request_set_tfm(&req_ctx->child_req, ctx->child); akcipher_request_set_callback(&req_ctx->child_req, req->base.flags, pkcs1pad_encrypt_sign_complete_cb, req); |
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/* Reuse output buffer */ akcipher_request_set_crypt(&req_ctx->child_req, req_ctx->in_sg, req->dst, ctx->key_size - 1, req->dst_len); |
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err = crypto_akcipher_encrypt(&req_ctx->child_req); |
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if (err != -EINPROGRESS && err != -EBUSY) |
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return pkcs1pad_encrypt_sign_complete(req, err); return err; } static int pkcs1pad_decrypt_complete(struct akcipher_request *req, int err) { struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req); struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm); struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req); |
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unsigned int dst_len; |
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unsigned int pos; |
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u8 *out_buf; |
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if (err) goto done; |
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err = -EINVAL; dst_len = req_ctx->child_req.dst_len; if (dst_len < ctx->key_size - 1) |
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goto done; |
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out_buf = req_ctx->out_buf; if (dst_len == ctx->key_size) { if (out_buf[0] != 0x00) /* Decrypted value had no leading 0 byte */ goto done; dst_len--; out_buf++; |
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} |
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if (out_buf[0] != 0x02) |
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goto done; |
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for (pos = 1; pos < dst_len; pos++) if (out_buf[pos] == 0x00) |
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break; |
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if (pos < 9 || pos == dst_len) |
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goto done; |
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pos++; |
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err = 0; if (req->dst_len < dst_len - pos) |
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err = -EOVERFLOW; |
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req->dst_len = dst_len - pos; |
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if (!err) sg_copy_from_buffer(req->dst, sg_nents_for_len(req->dst, req->dst_len), |
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out_buf + pos, req->dst_len); |
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done: |
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kfree_sensitive(req_ctx->out_buf); |
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return err; } static void pkcs1pad_decrypt_complete_cb( struct crypto_async_request *child_async_req, int err) { struct akcipher_request *req = child_async_req->data; struct crypto_async_request async_req; if (err == -EINPROGRESS) return; async_req.data = req->base.data; async_req.tfm = crypto_akcipher_tfm(crypto_akcipher_reqtfm(req)); async_req.flags = child_async_req->flags; req->base.complete(&async_req, pkcs1pad_decrypt_complete(req, err)); } static int pkcs1pad_decrypt(struct akcipher_request *req) { struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req); struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm); struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req); int err; if (!ctx->key_size || req->src_len != ctx->key_size) return -EINVAL; |
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req_ctx->out_buf = kmalloc(ctx->key_size, GFP_KERNEL); |
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if (!req_ctx->out_buf) return -ENOMEM; pkcs1pad_sg_set_buf(req_ctx->out_sg, req_ctx->out_buf, |
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ctx->key_size, NULL); |
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akcipher_request_set_tfm(&req_ctx->child_req, ctx->child); akcipher_request_set_callback(&req_ctx->child_req, req->base.flags, pkcs1pad_decrypt_complete_cb, req); |
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/* Reuse input buffer, output to a new buffer */ akcipher_request_set_crypt(&req_ctx->child_req, req->src, req_ctx->out_sg, req->src_len, ctx->key_size); |
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err = crypto_akcipher_decrypt(&req_ctx->child_req); |
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if (err != -EINPROGRESS && err != -EBUSY) |
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return pkcs1pad_decrypt_complete(req, err); return err; } static int pkcs1pad_sign(struct akcipher_request *req) { struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req); struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm); struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req); |
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struct akcipher_instance *inst = akcipher_alg_instance(tfm); struct pkcs1pad_inst_ctx *ictx = akcipher_instance_ctx(inst); const struct rsa_asn1_template *digest_info = ictx->digest_info; |
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int err; |
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unsigned int ps_end, digest_size = 0; |
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if (!ctx->key_size) return -EINVAL; |
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if (digest_info) digest_size = digest_info->size; |
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if (req->src_len + digest_size > ctx->key_size - 11) |
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return -EOVERFLOW; if (req->dst_len < ctx->key_size) { req->dst_len = ctx->key_size; return -EOVERFLOW; } |
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req_ctx->in_buf = kmalloc(ctx->key_size - 1 - req->src_len, |
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GFP_KERNEL); |
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if (!req_ctx->in_buf) return -ENOMEM; |
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ps_end = ctx->key_size - digest_size - req->src_len - 2; |
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req_ctx->in_buf[0] = 0x01; memset(req_ctx->in_buf + 1, 0xff, ps_end - 1); req_ctx->in_buf[ps_end] = 0x00; |
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if (digest_info) memcpy(req_ctx->in_buf + ps_end + 1, digest_info->data, digest_info->size); |
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|
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pkcs1pad_sg_set_buf(req_ctx->in_sg, req_ctx->in_buf, ctx->key_size - 1 - req->src_len, req->src); |
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akcipher_request_set_tfm(&req_ctx->child_req, ctx->child); akcipher_request_set_callback(&req_ctx->child_req, req->base.flags, pkcs1pad_encrypt_sign_complete_cb, req); |
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/* Reuse output buffer */ akcipher_request_set_crypt(&req_ctx->child_req, req_ctx->in_sg, req->dst, ctx->key_size - 1, req->dst_len); |
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err = crypto_akcipher_decrypt(&req_ctx->child_req); |
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if (err != -EINPROGRESS && err != -EBUSY) |
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return pkcs1pad_encrypt_sign_complete(req, err); return err; } static int pkcs1pad_verify_complete(struct akcipher_request *req, int err) { struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req); struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm); struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req); |
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struct akcipher_instance *inst = akcipher_alg_instance(tfm); struct pkcs1pad_inst_ctx *ictx = akcipher_instance_ctx(inst); const struct rsa_asn1_template *digest_info = ictx->digest_info; |
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unsigned int dst_len; |
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unsigned int pos; |
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u8 *out_buf; |
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if (err) goto done; |
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err = -EINVAL; dst_len = req_ctx->child_req.dst_len; if (dst_len < ctx->key_size - 1) |
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goto done; |
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out_buf = req_ctx->out_buf; if (dst_len == ctx->key_size) { if (out_buf[0] != 0x00) /* Decrypted value had no leading 0 byte */ goto done; dst_len--; out_buf++; |
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} |
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err = -EBADMSG; |
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if (out_buf[0] != 0x01) |
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goto done; |
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|
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for (pos = 1; pos < dst_len; pos++) if (out_buf[pos] != 0xff) |
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break; |
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|
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if (pos < 9 || pos == dst_len || out_buf[pos] != 0x00) |
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goto done; |
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pos++; |
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if (digest_info) { if (crypto_memneq(out_buf + pos, digest_info->data, digest_info->size)) goto done; |
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pos += digest_info->size; } |
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err = 0; |
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if (req->dst_len != dst_len - pos) { err = -EKEYREJECTED; req->dst_len = dst_len - pos; goto done; } /* Extract appended digest. */ sg_pcopy_to_buffer(req->src, sg_nents_for_len(req->src, req->src_len + req->dst_len), req_ctx->out_buf + ctx->key_size, req->dst_len, ctx->key_size); /* Do the actual verification step. */ if (memcmp(req_ctx->out_buf + ctx->key_size, out_buf + pos, req->dst_len) != 0) err = -EKEYREJECTED; |
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done: |
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kfree_sensitive(req_ctx->out_buf); |
3d5b1ecde crypto: rsa - RSA... |
478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 |
return err; } static void pkcs1pad_verify_complete_cb( struct crypto_async_request *child_async_req, int err) { struct akcipher_request *req = child_async_req->data; struct crypto_async_request async_req; if (err == -EINPROGRESS) return; async_req.data = req->base.data; async_req.tfm = crypto_akcipher_tfm(crypto_akcipher_reqtfm(req)); async_req.flags = child_async_req->flags; req->base.complete(&async_req, pkcs1pad_verify_complete(req, err)); } /* * The verify operation is here for completeness similar to the verification * defined in RFC2313 section 10.2 except that block type 0 is not accepted, * as in RFC2437. RFC2437 section 9.2 doesn't define any operation to * retrieve the DigestInfo from a signature, instead the user is expected * to call the sign operation to generate the expected signature and compare * signatures instead of the message-digests. */ static int pkcs1pad_verify(struct akcipher_request *req) { struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req); struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm); struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req); int err; |
c7381b012 crypto: akcipher ... |
511 512 513 |
if (WARN_ON(req->dst) || WARN_ON(!req->dst_len) || !ctx->key_size || req->src_len < ctx->key_size) |
3d5b1ecde crypto: rsa - RSA... |
514 |
return -EINVAL; |
c7381b012 crypto: akcipher ... |
515 |
req_ctx->out_buf = kmalloc(ctx->key_size + req->dst_len, GFP_KERNEL); |
3d5b1ecde crypto: rsa - RSA... |
516 517 518 519 |
if (!req_ctx->out_buf) return -ENOMEM; pkcs1pad_sg_set_buf(req_ctx->out_sg, req_ctx->out_buf, |
6f0904ada crypto: rsa-pkcs1... |
520 |
ctx->key_size, NULL); |
3d5b1ecde crypto: rsa - RSA... |
521 522 523 524 |
akcipher_request_set_tfm(&req_ctx->child_req, ctx->child); akcipher_request_set_callback(&req_ctx->child_req, req->base.flags, pkcs1pad_verify_complete_cb, req); |
d858b0713 crypto: rsa-pkcs1... |
525 526 527 528 |
/* Reuse input buffer, output to a new buffer */ akcipher_request_set_crypt(&req_ctx->child_req, req->src, req_ctx->out_sg, req->src_len, ctx->key_size); |
3ecc97259 crypto: rsa - uni... |
529 |
err = crypto_akcipher_encrypt(&req_ctx->child_req); |
4e5b0ad58 crypto: remove re... |
530 |
if (err != -EINPROGRESS && err != -EBUSY) |
3d5b1ecde crypto: rsa - RSA... |
531 532 533 534 535 536 537 538 |
return pkcs1pad_verify_complete(req, err); return err; } static int pkcs1pad_init_tfm(struct crypto_akcipher *tfm) { struct akcipher_instance *inst = akcipher_alg_instance(tfm); |
a49de377e crypto: Add hash ... |
539 |
struct pkcs1pad_inst_ctx *ictx = akcipher_instance_ctx(inst); |
3d5b1ecde crypto: rsa - RSA... |
540 541 |
struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm); struct crypto_akcipher *child_tfm; |
c0d20d22e crypto: rsa-pkcs1... |
542 |
child_tfm = crypto_spawn_akcipher(&ictx->spawn); |
3d5b1ecde crypto: rsa - RSA... |
543 544 545 546 |
if (IS_ERR(child_tfm)) return PTR_ERR(child_tfm); ctx->child = child_tfm; |
3d5b1ecde crypto: rsa - RSA... |
547 548 549 550 551 552 553 554 555 556 557 558 |
return 0; } static void pkcs1pad_exit_tfm(struct crypto_akcipher *tfm) { struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm); crypto_free_akcipher(ctx->child); } static void pkcs1pad_free(struct akcipher_instance *inst) { |
a49de377e crypto: Add hash ... |
559 560 |
struct pkcs1pad_inst_ctx *ctx = akcipher_instance_ctx(inst); struct crypto_akcipher_spawn *spawn = &ctx->spawn; |
3d5b1ecde crypto: rsa - RSA... |
561 562 |
crypto_drop_akcipher(spawn); |
3d5b1ecde crypto: rsa - RSA... |
563 564 565 566 567 |
kfree(inst); } static int pkcs1pad_create(struct crypto_template *tmpl, struct rtattr **tb) { |
73bed26f7 crypto: akcipher ... |
568 |
u32 mask; |
3d5b1ecde crypto: rsa - RSA... |
569 |
struct akcipher_instance *inst; |
a49de377e crypto: Add hash ... |
570 |
struct pkcs1pad_inst_ctx *ctx; |
3d5b1ecde crypto: rsa - RSA... |
571 |
struct akcipher_alg *rsa_alg; |
a49de377e crypto: Add hash ... |
572 |
const char *hash_name; |
3d5b1ecde crypto: rsa - RSA... |
573 |
int err; |
7bcb2c99f crypto: algapi - ... |
574 575 576 |
err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_AKCIPHER, &mask); if (err) return err; |
73bed26f7 crypto: akcipher ... |
577 |
|
a49de377e crypto: Add hash ... |
578 |
inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL); |
3d5b1ecde crypto: rsa - RSA... |
579 580 |
if (!inst) return -ENOMEM; |
a49de377e crypto: Add hash ... |
581 |
ctx = akcipher_instance_ctx(inst); |
a49de377e crypto: Add hash ... |
582 |
|
0708bb435 crypto: rsa-pkcs1... |
583 584 |
err = crypto_grab_akcipher(&ctx->spawn, akcipher_crypto_instance(inst), crypto_attr_alg_name(tb[1]), 0, mask); |
3d5b1ecde crypto: rsa - RSA... |
585 |
if (err) |
0708bb435 crypto: rsa-pkcs1... |
586 |
goto err_free_inst; |
3d5b1ecde crypto: rsa - RSA... |
587 |
|
0708bb435 crypto: rsa-pkcs1... |
588 |
rsa_alg = crypto_spawn_akcipher_alg(&ctx->spawn); |
3d5b1ecde crypto: rsa - RSA... |
589 590 |
err = -ENAMETOOLONG; |
0708bb435 crypto: rsa-pkcs1... |
591 592 |
hash_name = crypto_attr_alg_name(tb[2]); if (IS_ERR(hash_name)) { |
b3a8c8a5e crypto: rsa-pkcs1... |
593 594 595 |
if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME, "pkcs1pad(%s)", rsa_alg->base.cra_name) >= CRYPTO_MAX_ALG_NAME) |
0708bb435 crypto: rsa-pkcs1... |
596 |
goto err_free_inst; |
b3a8c8a5e crypto: rsa-pkcs1... |
597 598 599 600 601 |
if (snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME, "pkcs1pad(%s)", rsa_alg->base.cra_driver_name) >= CRYPTO_MAX_ALG_NAME) |
0708bb435 crypto: rsa-pkcs1... |
602 |
goto err_free_inst; |
b3a8c8a5e crypto: rsa-pkcs1... |
603 |
} else { |
0708bb435 crypto: rsa-pkcs1... |
604 605 606 607 608 |
ctx->digest_info = rsa_lookup_asn1(hash_name); if (!ctx->digest_info) { err = -EINVAL; goto err_free_inst; } |
b3a8c8a5e crypto: rsa-pkcs1... |
609 610 611 |
if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME, "pkcs1pad(%s,%s)", rsa_alg->base.cra_name, hash_name) >= CRYPTO_MAX_ALG_NAME) |
0708bb435 crypto: rsa-pkcs1... |
612 |
goto err_free_inst; |
b3a8c8a5e crypto: rsa-pkcs1... |
613 614 615 616 617 |
if (snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME, "pkcs1pad(%s,%s)", rsa_alg->base.cra_driver_name, hash_name) >= CRYPTO_MAX_ALG_NAME) |
0708bb435 crypto: rsa-pkcs1... |
618 |
goto err_free_inst; |
b3a8c8a5e crypto: rsa-pkcs1... |
619 |
} |
3d5b1ecde crypto: rsa - RSA... |
620 |
|
3d5b1ecde crypto: rsa - RSA... |
621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 |
inst->alg.base.cra_priority = rsa_alg->base.cra_priority; inst->alg.base.cra_ctxsize = sizeof(struct pkcs1pad_ctx); inst->alg.init = pkcs1pad_init_tfm; inst->alg.exit = pkcs1pad_exit_tfm; inst->alg.encrypt = pkcs1pad_encrypt; inst->alg.decrypt = pkcs1pad_decrypt; inst->alg.sign = pkcs1pad_sign; inst->alg.verify = pkcs1pad_verify; inst->alg.set_pub_key = pkcs1pad_set_pub_key; inst->alg.set_priv_key = pkcs1pad_set_priv_key; inst->alg.max_size = pkcs1pad_get_max_size; inst->alg.reqsize = sizeof(struct pkcs1pad_request) + rsa_alg->reqsize; inst->free = pkcs1pad_free; err = akcipher_register_instance(tmpl, inst); |
0708bb435 crypto: rsa-pkcs1... |
639 640 641 642 |
if (err) { err_free_inst: pkcs1pad_free(inst); } |
3d5b1ecde crypto: rsa - RSA... |
643 644 645 646 647 648 649 650 |
return err; } struct crypto_template rsa_pkcs1pad_tmpl = { .name = "pkcs1pad", .create = pkcs1pad_create, .module = THIS_MODULE, }; |