C++ OPENSSL_cleanse函数代码示例

//.........这里部分代码省略.........
		else
			/* make sure it's intialized in case we exit later with an error */
			EVP_CIPHER_CTX_init(s->enc_write_ctx);
		dd= s->enc_write_ctx;
		ssl_replace_hash(&s->write_hash,m);
#ifndef OPENSSL_NO_COMP
		/* COMPRESS */
		if (s->compress != NULL)
			{
			COMP_CTX_free(s->compress);
			s->compress=NULL;
			}
		if (comp != NULL)
			{
			s->compress=COMP_CTX_new(comp);
			if (s->compress == NULL)
				{
				SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE,SSL_R_COMPRESSION_LIBRARY_ERROR);
				goto err2;
				}
			}
#endif
		memset(&(s->s3->write_sequence[0]),0,8);
		mac_secret= &(s->s3->write_mac_secret[0]);
		}

	if (reuse_dd)
		EVP_CIPHER_CTX_cleanup(dd);

	p=s->s3->tmp.key_block;
	i=EVP_MD_size(m);
	if (i < 0)
		goto err2;
	cl=EVP_CIPHER_key_length(c);
	j=is_exp ? (cl < SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher) ?
		 cl : SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher)) : cl;
	/* Was j=(is_exp)?5:EVP_CIPHER_key_length(c); */
	k=EVP_CIPHER_iv_length(c);
	if (	(which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) ||
		(which == SSL3_CHANGE_CIPHER_SERVER_READ))
		{
		ms=  &(p[ 0]); n=i+i;
		key= &(p[ n]); n+=j+j;
		iv=  &(p[ n]); n+=k+k;
		er1= &(s->s3->client_random[0]);
		er2= &(s->s3->server_random[0]);
		}
	else
		{
		n=i;
		ms=  &(p[ n]); n+=i+j;
		key= &(p[ n]); n+=j+k;
		iv=  &(p[ n]); n+=k;
		er1= &(s->s3->server_random[0]);
		er2= &(s->s3->client_random[0]);
		}

	if (n > s->s3->tmp.key_block_length)
		{
		SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE,ERR_R_INTERNAL_ERROR);
		goto err2;
		}

	EVP_MD_CTX_init(&md);
	memcpy(mac_secret,ms,i);
	if (is_exp)
		{
		/* In here I set both the read and write key/iv to the
		 * same value since only the correct one will be used :-).
		 */
		EVP_DigestInit_ex(&md,EVP_md5(), NULL);
		EVP_DigestUpdate(&md,key,j);
		EVP_DigestUpdate(&md,er1,SSL3_RANDOM_SIZE);
		EVP_DigestUpdate(&md,er2,SSL3_RANDOM_SIZE);
		EVP_DigestFinal_ex(&md,&(exp_key[0]),NULL);
		key= &(exp_key[0]);

		if (k > 0)
			{
			EVP_DigestInit_ex(&md,EVP_md5(), NULL);
			EVP_DigestUpdate(&md,er1,SSL3_RANDOM_SIZE);
			EVP_DigestUpdate(&md,er2,SSL3_RANDOM_SIZE);
			EVP_DigestFinal_ex(&md,&(exp_iv[0]),NULL);
			iv= &(exp_iv[0]);
			}
		}

	s->session->key_arg_length=0;

	EVP_CipherInit_ex(dd,c,NULL,key,iv,(which & SSL3_CC_WRITE));

	OPENSSL_cleanse(&(exp_key[0]),sizeof(exp_key));
	OPENSSL_cleanse(&(exp_iv[0]),sizeof(exp_iv));
	EVP_MD_CTX_cleanup(&md);
	return(1);
err:
	SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE,ERR_R_MALLOC_FAILURE);
err2:
	return(0);
	}

int
PEM_ASN1_write_bio(i2d_of_void *i2d, const char *name, BIO *bp, void *x,
    const EVP_CIPHER *enc, unsigned char *kstr, int klen,
    pem_password_cb *callback, void *u)
{
	EVP_CIPHER_CTX ctx;
	int dsize = 0, i, j, ret = 0;
	unsigned char *p, *data = NULL;
	const char *objstr = NULL;
	char buf[PEM_BUFSIZE];
	unsigned char key[EVP_MAX_KEY_LENGTH];
	unsigned char iv[EVP_MAX_IV_LENGTH];

	if (enc != NULL) {
		objstr = OBJ_nid2sn(EVP_CIPHER_nid(enc));
		if (objstr == NULL) {
			PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,
			    PEM_R_UNSUPPORTED_CIPHER);
			goto err;
		}
	}

	if ((dsize = i2d(x, NULL)) < 0) {
		PEMerr(PEM_F_PEM_ASN1_WRITE_BIO, ERR_R_ASN1_LIB);
		dsize = 0;
		goto err;
	}
	/* dzise + 8 bytes are needed */
	/* actually it needs the cipher block size extra... */
	data = malloc((unsigned int)dsize + 20);
	if (data == NULL) {
		PEMerr(PEM_F_PEM_ASN1_WRITE_BIO, ERR_R_MALLOC_FAILURE);
		goto err;
	}
	p = data;
	i = i2d(x, &p);

	if (enc != NULL) {
		if (kstr == NULL) {
			if (callback == NULL)
				klen = PEM_def_callback(buf, PEM_BUFSIZE, 1, u);
			else
				klen = (*callback)(buf, PEM_BUFSIZE, 1, u);
			if (klen <= 0) {
				PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,
				    PEM_R_READ_KEY);
				goto err;
			}
			kstr = (unsigned char *)buf;
		}
		OPENSSL_assert(enc->iv_len <= (int)sizeof(iv));
		if (RAND_pseudo_bytes(iv, enc->iv_len) < 0) /* Generate a salt */
			goto err;
		/* The 'iv' is used as the iv and as a salt.  It is
		 * NOT taken from the BytesToKey function */
		if (!EVP_BytesToKey(enc, EVP_md5(), iv, kstr, klen, 1,
		    key, NULL))
			goto err;

		if (kstr == (unsigned char *)buf)
			OPENSSL_cleanse(buf, PEM_BUFSIZE);

		OPENSSL_assert(strlen(objstr) + 23 +
		    2 * enc->iv_len + 13 <= sizeof buf);

		buf[0] = '\0';
		PEM_proc_type(buf, PEM_TYPE_ENCRYPTED);
		PEM_dek_info(buf, objstr, enc->iv_len, (char *)iv);
		/* k=strlen(buf); */

		EVP_CIPHER_CTX_init(&ctx);
		ret = 1;
		if (!EVP_EncryptInit_ex(&ctx, enc, NULL, key, iv) ||
		    !EVP_EncryptUpdate(&ctx, data, &j, data, i) ||
		    !EVP_EncryptFinal_ex(&ctx, &(data[j]), &i))
			ret = 0;
		EVP_CIPHER_CTX_cleanup(&ctx);
		if (ret == 0)
			goto err;
		i += j;
	} else {
		ret = 1;
		buf[0] = '\0';
	}
	i = PEM_write_bio(bp, name, buf, data, i);
	if (i <= 0)
		ret = 0;
err:
	OPENSSL_cleanse(key, sizeof(key));
	OPENSSL_cleanse(iv, sizeof(iv));
	OPENSSL_cleanse((char *)&ctx, sizeof(ctx));
	OPENSSL_cleanse(buf, PEM_BUFSIZE);
	if (data != NULL) {
		OPENSSL_cleanse(data, (unsigned int)dsize);
		free(data);
	}
	return (ret);
}

//.........这里部分代码省略.........
	case NID_pkcs7_digest:
		xa = p7->d.digest->md;
		os = PKCS7_get_octet_string(p7->d.digest->contents);
		break;
	case NID_pkcs7_data:
		break;
	default:
		PKCS7err(PKCS7_F_PKCS7_DATAINIT,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
	        goto err;
		}

	for (i=0; i<sk_X509_ALGOR_num(md_sk); i++)
		if (!PKCS7_bio_add_digest(&out, sk_X509_ALGOR_value(md_sk, i)))
			goto err;

	if (xa && !PKCS7_bio_add_digest(&out, xa))
			goto err;

	if (evp_cipher != NULL)
		{
		unsigned char key[EVP_MAX_KEY_LENGTH];
		unsigned char iv[EVP_MAX_IV_LENGTH];
		int keylen,ivlen;
		EVP_CIPHER_CTX *ctx;

		if ((btmp=BIO_new(BIO_f_cipher())) == NULL)
			{
			PKCS7err(PKCS7_F_PKCS7_DATAINIT,ERR_R_BIO_LIB);
			goto err;
			}
		BIO_get_cipher_ctx(btmp, &ctx);
		keylen=EVP_CIPHER_key_length(evp_cipher);
		ivlen=EVP_CIPHER_iv_length(evp_cipher);
		xalg->algorithm = OBJ_nid2obj(EVP_CIPHER_type(evp_cipher));
		if (ivlen > 0)
			if (RAND_pseudo_bytes(iv,ivlen) <= 0)
				goto err;
		if (EVP_CipherInit_ex(ctx, evp_cipher, NULL, NULL, NULL, 1)<=0)
			goto err;
		if (EVP_CIPHER_CTX_rand_key(ctx, key) <= 0)
			goto err;
		if (EVP_CipherInit_ex(ctx, NULL, NULL, key, iv, 1) <= 0)
			goto err;

		if (ivlen > 0) {
			if (xalg->parameter == NULL) {
				xalg->parameter = ASN1_TYPE_new();
				if (xalg->parameter == NULL)
					goto err;
			}
			if(EVP_CIPHER_param_to_asn1(ctx, xalg->parameter) < 0)
				goto err;
		}

		/* Lets do the pub key stuff :-) */
		for (i=0; i<sk_PKCS7_RECIP_INFO_num(rsk); i++)
			{
			ri=sk_PKCS7_RECIP_INFO_value(rsk,i);
			if (pkcs7_encode_rinfo(ri, key, keylen) <= 0)
				goto err;
			}
		OPENSSL_cleanse(key, keylen);

		if (out == NULL)
			out=btmp;
		else
			BIO_push(out,btmp);
		btmp=NULL;
		}

	if (bio == NULL)
		{
		if (PKCS7_is_detached(p7))
			bio=BIO_new(BIO_s_null());
		else if (os && os->length > 0)
			bio = BIO_new_mem_buf(os->data, os->length);
		if(bio == NULL)
			{
			bio=BIO_new(BIO_s_mem());
			if (bio == NULL)
				goto err;
			BIO_set_mem_eof_return(bio,0);
			}
		}
	if (out)
		BIO_push(out,bio);
	else
		out = bio;
	bio=NULL;
	if (0)
		{
err:
		if (out != NULL)
			BIO_free_all(out);
		if (btmp != NULL)
			BIO_free_all(btmp);
		out=NULL;
		}
	return(out);
	}

//.........这里部分代码省略.........
		ms=  &(p[ n]); n+=i+j;
		key= &(p[ n]); n+=j+k;
		iv=  &(p[ n]); n+=k;
		exp_label=(unsigned char *)TLS_MD_SERVER_WRITE_KEY_CONST;
		exp_label_len=TLS_MD_SERVER_WRITE_KEY_CONST_SIZE;
		client_write=0;
		}

	if (n > s->s3->tmp.key_block_length)
		{
		SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,ERR_R_INTERNAL_ERROR);
		goto err2;
		}

	memcpy(mac_secret,ms,i);

	if (!(EVP_CIPHER_flags(c)&EVP_CIPH_FLAG_AEAD_CIPHER))
		{
		mac_key = EVP_PKEY_new_mac_key(mac_type, NULL,
				mac_secret,*mac_secret_size);
		EVP_DigestSignInit(mac_ctx,NULL,m,NULL,mac_key);
		EVP_PKEY_free(mac_key);
		}
#ifdef TLS_DEBUG
printf("which = %04X\nmac key=",which);
{ int z; for (z=0; z<i; z++) printf("%02X%c",ms[z],((z+1)%16)?' ':'\n'); }
#endif
	if (is_export)
		{
		/* In here I set both the read and write key/iv to the
		 * same value since only the correct one will be used :-).
		 */
		if (!tls1_PRF(ssl_get_algorithm2(s),
				exp_label,exp_label_len,
				s->s3->client_random,SSL3_RANDOM_SIZE,
				s->s3->server_random,SSL3_RANDOM_SIZE,
				NULL,0,NULL,0,
				key,j,tmp1,tmp2,EVP_CIPHER_key_length(c)))
			goto err2;
		key=tmp1;

		if (k > 0)
			{
			if (!tls1_PRF(ssl_get_algorithm2(s),
					TLS_MD_IV_BLOCK_CONST,TLS_MD_IV_BLOCK_CONST_SIZE,
					s->s3->client_random,SSL3_RANDOM_SIZE,
					s->s3->server_random,SSL3_RANDOM_SIZE,
					NULL,0,NULL,0,
					empty,0,iv1,iv2,k*2))
				goto err2;
			if (client_write)
				iv=iv1;
			else
				iv= &(iv1[k]);
			}
		}

	s->session->key_arg_length=0;
#ifdef KSSL_DEBUG
	{
        int i;
	printf("EVP_CipherInit_ex(dd,c,key=,iv=,which)\n");
	printf("\tkey= "); for (i=0; i<c->key_len; i++) printf("%02x", key[i]);
	printf("\n");
	printf("\t iv= "); for (i=0; i<c->iv_len; i++) printf("%02x", iv[i]);
	printf("\n");
	}
#endif	/* KSSL_DEBUG */

	if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE)
		{
		EVP_CipherInit_ex(dd,c,NULL,key,NULL,(which & SSL3_CC_WRITE));
		EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_GCM_SET_IV_FIXED, k, iv);
		}
	else	
		EVP_CipherInit_ex(dd,c,NULL,key,iv,(which & SSL3_CC_WRITE));

	/* Needed for "composite" AEADs, such as RC4-HMAC-MD5 */
	if ((EVP_CIPHER_flags(c)&EVP_CIPH_FLAG_AEAD_CIPHER) && *mac_secret_size)
		EVP_CIPHER_CTX_ctrl(dd,EVP_CTRL_AEAD_SET_MAC_KEY,
				*mac_secret_size,mac_secret);

#ifdef TLS_DEBUG
printf("which = %04X\nkey=",which);
{ int z; for (z=0; z<EVP_CIPHER_key_length(c); z++) printf("%02X%c",key[z],((z+1)%16)?' ':'\n'); }
printf("\niv=");
{ int z; for (z=0; z<k; z++) printf("%02X%c",iv[z],((z+1)%16)?' ':'\n'); }
printf("\n");
#endif

	OPENSSL_cleanse(tmp1,sizeof(tmp1));
	OPENSSL_cleanse(tmp2,sizeof(tmp1));
	OPENSSL_cleanse(iv1,sizeof(iv1));
	OPENSSL_cleanse(iv2,sizeof(iv2));
	return(1);
err:
	SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,ERR_R_MALLOC_FAILURE);
err2:
	return(0);
	}

//.........这里部分代码省略.........
                        && (BIO_write(wbio, magic,
                                      sizeof magic - 1) != sizeof magic - 1
                            || BIO_write(wbio,
                                         (char *)salt,
                                         sizeof salt) != sizeof salt)) {
                        BIO_printf(bio_err, "error writing output file\n");
                        goto end;
                    }
                } else if (BIO_read(rbio, mbuf, sizeof mbuf) != sizeof mbuf
                           || BIO_read(rbio,
                                       (unsigned char *)salt,
                                       sizeof salt) != sizeof salt) {
                    BIO_printf(bio_err, "error reading input file\n");
                    goto end;
                } else if (memcmp(mbuf, magic, sizeof magic - 1)) {
                    BIO_printf(bio_err, "bad magic number\n");
                    goto end;
                }

                sptr = salt;
            }

            if (!EVP_BytesToKey(cipher, dgst, sptr,
                                (unsigned char *)str,
                                strlen(str), 1, key, iv)) {
                BIO_printf(bio_err, "EVP_BytesToKey failed\n");
                goto end;
            }
            /*
             * zero the complete buffer or the string passed from the command
             * line bug picked up by Larry J. Hughes Jr. <[email protected]>
             */
            if (str == strbuf)
                OPENSSL_cleanse(str, SIZE);
            else
                OPENSSL_cleanse(str, strlen(str));
        }
        if (hiv != NULL) {
            int siz = EVP_CIPHER_iv_length(cipher);
            if (siz == 0) {
                BIO_printf(bio_err, "warning: iv not use by this cipher\n");
            } else if (!set_hex(hiv, iv, sizeof iv)) {
                BIO_printf(bio_err, "invalid hex iv value\n");
                goto end;
            }
        }
        if ((hiv == NULL) && (str == NULL)
            && EVP_CIPHER_iv_length(cipher) != 0) {
            /*
             * No IV was explicitly set and no IV was generated during
             * EVP_BytesToKey. Hence the IV is undefined, making correct
             * decryption impossible.
             */
            BIO_printf(bio_err, "iv undefined\n");
            goto end;
        }
        if ((hkey != NULL) && !set_hex(hkey, key, EVP_CIPHER_key_length(cipher))) {
            BIO_printf(bio_err, "invalid hex key value\n");
            goto end;
        }

        if ((benc = BIO_new(BIO_f_cipher())) == NULL)
            goto end;

        /*
         * Since we may be changing parameters work on the encryption context

//.........这里部分代码省略.........
            blocks[i].d[15] = BSWAP4(len);
#   else
            PUTU32(blocks[i].c + 60, len);
#   endif
            edges[i].blocks = 1;
        } else {
#   ifdef BSWAP4
            blocks[i].d[31] = BSWAP4(len);
#   else
            PUTU32(blocks[i].c + 124, len);
#   endif
            edges[i].blocks = 2;
        }
        edges[i].ptr = blocks[i].c;
    }

    /* hash input tails and finalize */
    sha1_multi_block(ctx, edges, n4x);

    memset(blocks, 0, sizeof(blocks));
    for (i = 0; i < x4; i++) {
#   ifdef BSWAP4
        blocks[i].d[0] = BSWAP4(ctx->A[i]);
        ctx->A[i] = key->tail.h0;
        blocks[i].d[1] = BSWAP4(ctx->B[i]);
        ctx->B[i] = key->tail.h1;
        blocks[i].d[2] = BSWAP4(ctx->C[i]);
        ctx->C[i] = key->tail.h2;
        blocks[i].d[3] = BSWAP4(ctx->D[i]);
        ctx->D[i] = key->tail.h3;
        blocks[i].d[4] = BSWAP4(ctx->E[i]);
        ctx->E[i] = key->tail.h4;
        blocks[i].c[20] = 0x80;
        blocks[i].d[15] = BSWAP4((64 + 20) * 8);
#   else
        PUTU32(blocks[i].c + 0, ctx->A[i]);
        ctx->A[i] = key->tail.h0;
        PUTU32(blocks[i].c + 4, ctx->B[i]);
        ctx->B[i] = key->tail.h1;
        PUTU32(blocks[i].c + 8, ctx->C[i]);
        ctx->C[i] = key->tail.h2;
        PUTU32(blocks[i].c + 12, ctx->D[i]);
        ctx->D[i] = key->tail.h3;
        PUTU32(blocks[i].c + 16, ctx->E[i]);
        ctx->E[i] = key->tail.h4;
        blocks[i].c[20] = 0x80;
        PUTU32(blocks[i].c + 60, (64 + 20) * 8);
#   endif
        edges[i].ptr = blocks[i].c;
        edges[i].blocks = 1;
    }

    /* finalize MACs */
    sha1_multi_block(ctx, edges, n4x);

    for (i = 0; i < x4; i++) {
        unsigned int len = (i == (x4 - 1) ? last : frag), pad, j;
        unsigned char *out0 = out;

        memcpy(ciph_d[i].out, ciph_d[i].inp, len - processed);
        ciph_d[i].inp = ciph_d[i].out;

        out += 5 + 16 + len;

        /* write MAC */
        PUTU32(out + 0, ctx->A[i]);
        PUTU32(out + 4, ctx->B[i]);
        PUTU32(out + 8, ctx->C[i]);
        PUTU32(out + 12, ctx->D[i]);
        PUTU32(out + 16, ctx->E[i]);
        out += 20;
        len += 20;

        /* pad */
        pad = 15 - len % 16;
        for (j = 0; j <= pad; j++)
            *(out++) = pad;
        len += pad + 1;

        ciph_d[i].blocks = (len - processed) / 16;
        len += 16;              /* account for explicit iv */

        /* arrange header */
        out0[0] = ((u8 *)key->md.data)[8];
        out0[1] = ((u8 *)key->md.data)[9];
        out0[2] = ((u8 *)key->md.data)[10];
        out0[3] = (u8)(len >> 8);
        out0[4] = (u8)(len);

        ret += len + 5;
        inp += frag;
    }

    aesni_multi_cbc_encrypt(ciph_d, &key->ks, n4x);

    OPENSSL_cleanse(blocks, sizeof(blocks));
    OPENSSL_cleanse(ctx, sizeof(*ctx));

    return ret;
}

//.........这里部分代码省略.........
		CMSerr(CMS_F_CMS_ENCRYPTEDCONTENT_INIT_BIO,
				CMS_R_CIPHER_PARAMETER_INITIALISATION_ERROR);
		goto err;
		}
	tkeylen = EVP_CIPHER_CTX_key_length(ctx);
	/* Generate random session key */
	if (!enc || !ec->key)
		{
		tkey = OPENSSL_malloc(tkeylen);
		if (!tkey)
			{
			CMSerr(CMS_F_CMS_ENCRYPTEDCONTENT_INIT_BIO,
							ERR_R_MALLOC_FAILURE);
			goto err;
			}
		if (EVP_CIPHER_CTX_rand_key(ctx, tkey) <= 0)
			goto err;
		}

	if (!ec->key)
		{
		ec->key = tkey;
		ec->keylen = tkeylen;
		tkey = NULL;
		if (enc)
			keep_key = 1;
		else
			ERR_clear_error();
		
		}

	if (ec->keylen != tkeylen)
		{
		/* If necessary set key length */
		if (EVP_CIPHER_CTX_set_key_length(ctx, ec->keylen) <= 0)
			{
			/* Only reveal failure if debugging so we don't
			 * leak information which may be useful in MMA.
			 */
			if (enc || ec->debug)
				{
				CMSerr(CMS_F_CMS_ENCRYPTEDCONTENT_INIT_BIO,
						CMS_R_INVALID_KEY_LENGTH);
				goto err;
				}
			else
				{
				/* Use random key */
				OPENSSL_cleanse(ec->key, ec->keylen);
				OPENSSL_free(ec->key);
				ec->key = tkey;
				ec->keylen = tkeylen;
				tkey = NULL;
				ERR_clear_error();
				}
			}
		}

	if (EVP_CipherInit_ex(ctx, NULL, NULL, ec->key, piv, enc) <= 0)
		{
		CMSerr(CMS_F_CMS_ENCRYPTEDCONTENT_INIT_BIO,
				CMS_R_CIPHER_INITIALISATION_ERROR);
		goto err;
		}

	if (piv)
		{
		calg->parameter = ASN1_TYPE_new();
		if (!calg->parameter)
			{
			CMSerr(CMS_F_CMS_ENCRYPTEDCONTENT_INIT_BIO,
							ERR_R_MALLOC_FAILURE);
			goto err;
			}
		if (EVP_CIPHER_param_to_asn1(ctx, calg->parameter) <= 0)
			{
			CMSerr(CMS_F_CMS_ENCRYPTEDCONTENT_INIT_BIO,
				CMS_R_CIPHER_PARAMETER_INITIALISATION_ERROR);
			goto err;
			}
		}
	ok = 1;

	err:
	if (ec->key && !keep_key)
		{
		OPENSSL_cleanse(ec->key, ec->keylen);
		OPENSSL_free(ec->key);
		ec->key = NULL;
		}
	if (tkey)
		{
		OPENSSL_cleanse(tkey, tkeylen);
		OPENSSL_free(tkey);
		}
	if (ok)
		return b;
	BIO_free(b);
	return NULL;
	}

int PKCS5_PBE_keyivgen(EVP_CIPHER_CTX *cctx, const char *pass, int passlen,
			 ASN1_TYPE *param, const EVP_CIPHER *cipher, const EVP_MD *md,
			 int en_de)
{
	EVP_MD_CTX ctx;
	unsigned char md_tmp[EVP_MAX_MD_SIZE];
	unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
	int i;
	PBEPARAM *pbe;
	int saltlen, iter;
	unsigned char *salt;
	const unsigned char *pbuf;
	int mdsize;

	/* Extract useful info from parameter */
	if (param == NULL || param->type != V_ASN1_SEQUENCE ||
	    param->value.sequence == NULL) {
		EVPerr(EVP_F_PKCS5_PBE_KEYIVGEN,EVP_R_DECODE_ERROR);
		return 0;
	}

	pbuf = param->value.sequence->data;
	if (!(pbe = d2i_PBEPARAM(NULL, &pbuf, param->value.sequence->length))) {
		EVPerr(EVP_F_PKCS5_PBE_KEYIVGEN,EVP_R_DECODE_ERROR);
		return 0;
	}

	if (!pbe->iter) iter = 1;
	else iter = ASN1_INTEGER_get (pbe->iter);
	salt = pbe->salt->data;
	saltlen = pbe->salt->length;

	if(!pass) passlen = 0;
	else if(passlen == -1) passlen = strlen(pass);

	EVP_MD_CTX_init(&ctx);
	EVP_DigestInit_ex(&ctx, md, NULL);
	EVP_DigestUpdate(&ctx, pass, passlen);
	EVP_DigestUpdate(&ctx, salt, saltlen);
	PBEPARAM_free(pbe);
	EVP_DigestFinal_ex(&ctx, md_tmp, NULL);
	mdsize = EVP_MD_size(md);
	if (mdsize < 0)
	    return 0;
	for (i = 1; i < iter; i++) {
		EVP_DigestInit_ex(&ctx, md, NULL);
		EVP_DigestUpdate(&ctx, md_tmp, mdsize);
		EVP_DigestFinal_ex (&ctx, md_tmp, NULL);
	}
	EVP_MD_CTX_cleanup(&ctx);
	OPENSSL_assert(EVP_CIPHER_key_length(cipher) <= (int)sizeof(md_tmp));
	memcpy(key, md_tmp, EVP_CIPHER_key_length(cipher));
	OPENSSL_assert(EVP_CIPHER_iv_length(cipher) <= 16);
	memcpy(iv, md_tmp + (16 - EVP_CIPHER_iv_length(cipher)),
						 EVP_CIPHER_iv_length(cipher));
	EVP_CipherInit_ex(cctx, cipher, NULL, key, iv, en_de);
	OPENSSL_cleanse(md_tmp, EVP_MAX_MD_SIZE);
	OPENSSL_cleanse(key, EVP_MAX_KEY_LENGTH);
	OPENSSL_cleanse(iv, EVP_MAX_IV_LENGTH);
	return 1;
}

/* signature verification */
static int RSA_eay_public_decrypt(int flen, const unsigned char *from,
	     unsigned char *to, RSA *rsa, int padding)
	{
	BIGNUM *f,*ret;
	int i,num=0,r= -1;
	unsigned char *p;
	unsigned char *buf=NULL;
	BN_CTX *ctx=NULL;

	if (BN_num_bits(rsa->n) > OPENSSL_RSA_MAX_MODULUS_BITS)
		{
		RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT, RSA_R_MODULUS_TOO_LARGE);
		return -1;
		}

	if (BN_ucmp(rsa->n, rsa->e) <= 0)
		{
		RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT, RSA_R_BAD_E_VALUE);
		return -1;
		}

	/* for large moduli, enforce exponent limit */
	if (BN_num_bits(rsa->n) > OPENSSL_RSA_SMALL_MODULUS_BITS)
		{
		if (BN_num_bits(rsa->e) > OPENSSL_RSA_MAX_PUBEXP_BITS)
			{
			RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT, RSA_R_BAD_E_VALUE);
			return -1;
			}
		}
	
	if((ctx = BN_CTX_new()) == NULL) goto err;
	BN_CTX_start(ctx);
	f = BN_CTX_get(ctx);
	ret = BN_CTX_get(ctx);
	num=BN_num_bytes(rsa->n);
	buf = OPENSSL_malloc(num);
	if(!f || !ret || !buf)
		{
		RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT,ERR_R_MALLOC_FAILURE);
		goto err;
		}

	/* This check was for equality but PGP does evil things
	 * and chops off the top '0' bytes */
	if (flen > num)
		{
		RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT,RSA_R_DATA_GREATER_THAN_MOD_LEN);
		goto err;
		}

	if (BN_bin2bn(from,flen,f) == NULL) goto err;

	if (BN_ucmp(f, rsa->n) >= 0)
		{
		RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT,RSA_R_DATA_TOO_LARGE_FOR_MODULUS);
		goto err;
		}

	if (rsa->flags & RSA_FLAG_CACHE_PUBLIC)
		if (!BN_MONT_CTX_set_locked(&rsa->_method_mod_n, CRYPTO_LOCK_RSA, rsa->n, ctx))
			goto err;

	if (!rsa->meth->bn_mod_exp(ret,f,rsa->e,rsa->n,ctx,
		rsa->_method_mod_n)) goto err;

	if ((padding == RSA_X931_PADDING) && ((ret->d[0] & 0xf) != 12))
		if (!BN_sub(ret, rsa->n, ret)) goto err;

	p=buf;
	i=BN_bn2bin(ret,p);

	switch (padding)
		{
	case RSA_PKCS1_PADDING:
		r=RSA_padding_check_PKCS1_type_1(to,num,buf,i,num);
		break;
	case RSA_X931_PADDING:
		r=RSA_padding_check_X931(to,num,buf,i,num);
		break;
	case RSA_NO_PADDING:
		r=RSA_padding_check_none(to,num,buf,i,num);
		break;
	default:
		RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT,RSA_R_UNKNOWN_PADDING_TYPE);
		goto err;
		}
	if (r < 0)
		RSAerr(RSA_F_RSA_EAY_PUBLIC_DECRYPT,RSA_R_PADDING_CHECK_FAILED);

err:
	if (ctx != NULL)
		{
		BN_CTX_end(ctx);
		BN_CTX_free(ctx);
		}
	if (buf != NULL)
		{
		OPENSSL_cleanse(buf,num);
//.........这里部分代码省略.........

static int RSA_eay_public_encrypt(int flen, const unsigned char *from,
	     unsigned char *to, RSA *rsa, int padding)
	{
	BIGNUM f,ret;
	int i,j,k,num=0,r= -1;
	unsigned char *buf=NULL;
	BN_CTX *ctx=NULL;

	BN_init(&f);
	BN_init(&ret);
	if ((ctx=BN_CTX_new()) == NULL) goto err;
	num=BN_num_bytes(rsa->n);
	if ((buf=(unsigned char *)OPENSSL_malloc(num)) == NULL)
		{
		RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT,ERR_R_MALLOC_FAILURE);
		goto err;
		}

	switch (padding)
		{
	case RSA_PKCS1_PADDING:
		i=RSA_padding_add_PKCS1_type_2(buf,num,from,flen);
		break;
#ifndef OPENSSL_NO_SHA
	case RSA_PKCS1_OAEP_PADDING:
	        i=RSA_padding_add_PKCS1_OAEP(buf,num,from,flen,NULL,0);
		break;
#endif
	case RSA_SSLV23_PADDING:
		i=RSA_padding_add_SSLv23(buf,num,from,flen);
		break;
	case RSA_NO_PADDING:
		i=RSA_padding_add_none(buf,num,from,flen);
		break;
	default:
		RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT,RSA_R_UNKNOWN_PADDING_TYPE);
		goto err;
		}
	if (i <= 0) goto err;

	if (BN_bin2bn(buf,num,&f) == NULL) goto err;
	
	if (BN_ucmp(&f, rsa->n) >= 0)
		{	
		/* usually the padding functions would catch this */
		RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT,RSA_R_DATA_TOO_LARGE_FOR_MODULUS);
		goto err;
		}

	if ((rsa->_method_mod_n == NULL) && (rsa->flags & RSA_FLAG_CACHE_PUBLIC))
		{
		BN_MONT_CTX* bn_mont_ctx;
		if ((bn_mont_ctx=BN_MONT_CTX_new()) == NULL)
			goto err;
		if (!BN_MONT_CTX_set(bn_mont_ctx,rsa->n,ctx))
			{
			BN_MONT_CTX_free(bn_mont_ctx);
			goto err;
			}
		if (rsa->_method_mod_n == NULL) /* other thread may have finished first */
			{
			CRYPTO_w_lock(CRYPTO_LOCK_RSA);
			if (rsa->_method_mod_n == NULL)
				{
				rsa->_method_mod_n = bn_mont_ctx;
				bn_mont_ctx = NULL;
				}
			CRYPTO_w_unlock(CRYPTO_LOCK_RSA);
			}
		if (bn_mont_ctx)
			BN_MONT_CTX_free(bn_mont_ctx);
		}
		
	if (!rsa->meth->bn_mod_exp(&ret,&f,rsa->e,rsa->n,ctx,
		rsa->_method_mod_n)) goto err;

	/* put in leading 0 bytes if the number is less than the
	 * length of the modulus */
	j=BN_num_bytes(&ret);
	i=BN_bn2bin(&ret,&(to[num-j]));
	for (k=0; k<(num-i); k++)
		to[k]=0;

	r=num;
err:
	if (ctx != NULL) BN_CTX_free(ctx);
	BN_clear_free(&f);
	BN_clear_free(&ret);
	if (buf != NULL) 
		{
		OPENSSL_cleanse(buf,num);
		OPENSSL_free(buf);
		}
	return(r);
	}

//.........这里部分代码省略.........
		{
		RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT,RSA_R_DATA_TOO_LARGE_FOR_MODULUS);
		goto err;
		}

	if (!(rsa->flags & RSA_FLAG_NO_BLINDING))
		{
		blinding = rsa_get_blinding(rsa, &local_blinding, ctx);
		if (blinding == NULL)
			{
			RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT, ERR_R_INTERNAL_ERROR);
			goto err;
			}
		}
	
	if (blinding != NULL)
		{
		if (!local_blinding && ((unblind = BN_CTX_get(ctx)) == NULL))
			{
			RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT,ERR_R_MALLOC_FAILURE);
			goto err;
			}
		if (!rsa_blinding_convert(blinding, f, unblind, ctx))
			goto err;
		}

	/* do the decrypt */
	if ( (rsa->flags & RSA_FLAG_EXT_PKEY) ||
		((rsa->p != NULL) &&
		(rsa->q != NULL) &&
		(rsa->dmp1 != NULL) &&
		(rsa->dmq1 != NULL) &&
		(rsa->iqmp != NULL)) )
		{
		if (!rsa->meth->rsa_mod_exp(ret, f, rsa, ctx)) goto err;
		}
	else
		{
		BIGNUM local_d;
		BIGNUM *d = NULL;
		
		if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME))
			{
			d = &local_d;
			BN_with_flags(d, rsa->d, BN_FLG_CONSTTIME);
			}
		else
			d = rsa->d;

		if (rsa->flags & RSA_FLAG_CACHE_PUBLIC)
			if (!BN_MONT_CTX_set_locked(&rsa->_method_mod_n, CRYPTO_LOCK_RSA, rsa->n, ctx))
				goto err;
		if (!rsa->meth->bn_mod_exp(ret,f,d,rsa->n,ctx,
				rsa->_method_mod_n))
		  goto err;
		}

	if (blinding)
		if (!rsa_blinding_invert(blinding, ret, unblind, ctx))
			goto err;

	p=buf;
	j=BN_bn2bin(ret,p); /* j is only used with no-padding mode */

	switch (padding)
		{
	case RSA_PKCS1_PADDING:
		r=RSA_padding_check_PKCS1_type_2(to,num,buf,j,num);
		break;
#ifndef OPENSSL_NO_SHA
        case RSA_PKCS1_OAEP_PADDING:
	        r=RSA_padding_check_PKCS1_OAEP(to,num,buf,j,num,NULL,0);
                break;
#endif
 	case RSA_SSLV23_PADDING:
		r=RSA_padding_check_SSLv23(to,num,buf,j,num);
		break;
	case RSA_NO_PADDING:
		r=RSA_padding_check_none(to,num,buf,j,num);
		break;
	default:
		RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT,RSA_R_UNKNOWN_PADDING_TYPE);
		goto err;
		}
	if (r < 0)
		RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT,RSA_R_PADDING_CHECK_FAILED);

err:
	if (ctx != NULL)
		{
		BN_CTX_end(ctx);
		BN_CTX_free(ctx);
		}
	if (buf != NULL)
		{
		OPENSSL_cleanse(buf,num);
		OPENSSL_free(buf);
		}
	return(r);
	}

//.........这里部分代码省略.........
		}
	if (i <= 0) goto err;

	if (BN_bin2bn(buf,num,f) == NULL) goto err;
	
	if (BN_ucmp(f, rsa->n) >= 0)
		{	
		/* usually the padding functions would catch this */
		RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT,RSA_R_DATA_TOO_LARGE_FOR_MODULUS);
		goto err;
		}

	if (!(rsa->flags & RSA_FLAG_NO_BLINDING))
		{
		blinding = rsa_get_blinding(rsa, &local_blinding, ctx);
		if (blinding == NULL)
			{
			RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT, ERR_R_INTERNAL_ERROR);
			goto err;
			}
		}
	
	if (blinding != NULL)
		{
		if (!local_blinding && ((unblind = BN_CTX_get(ctx)) == NULL))
			{
			RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT,ERR_R_MALLOC_FAILURE);
			goto err;
			}
		if (!rsa_blinding_convert(blinding, f, unblind, ctx))
			goto err;
		}

	if ( (rsa->flags & RSA_FLAG_EXT_PKEY) ||
		((rsa->p != NULL) &&
		(rsa->q != NULL) &&
		(rsa->dmp1 != NULL) &&
		(rsa->dmq1 != NULL) &&
		(rsa->iqmp != NULL)) )
		{ 
		if (!rsa->meth->rsa_mod_exp(ret, f, rsa, ctx)) goto err;
		}
	else
		{
		BIGNUM local_d;
		BIGNUM *d = NULL;
		
		if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME))
			{
			BN_init(&local_d);
			d = &local_d;
			BN_with_flags(d, rsa->d, BN_FLG_CONSTTIME);
			}
		else
			d= rsa->d;

		if (rsa->flags & RSA_FLAG_CACHE_PUBLIC)
			if(!BN_MONT_CTX_set_locked(&rsa->_method_mod_n, CRYPTO_LOCK_RSA, rsa->n, ctx))
				goto err;

		if (!rsa->meth->bn_mod_exp(ret,f,d,rsa->n,ctx,
				rsa->_method_mod_n)) goto err;
		}

	if (blinding)
		if (!rsa_blinding_invert(blinding, ret, unblind, ctx))
			goto err;

	if (padding == RSA_X931_PADDING)
		{
		BN_sub(f, rsa->n, ret);
		if (BN_cmp(ret, f))
			res = f;
		else
			res = ret;
		}
	else
		res = ret;

	/* put in leading 0 bytes if the number is less than the
	 * length of the modulus */
	j=BN_num_bytes(res);
	i=BN_bn2bin(res,&(to[num-j]));
	for (k=0; k<(num-i); k++)
		to[k]=0;

	r=num;
err:
	if (ctx != NULL)
		{
		BN_CTX_end(ctx);
		BN_CTX_free(ctx);
		}
	if (buf != NULL)
		{
		OPENSSL_cleanse(buf,num);
		OPENSSL_free(buf);
		}
	return(r);
	}

static int RSA_eay_public_encrypt(int flen, const unsigned char *from,
	     unsigned char *to, RSA *rsa, int padding)
	{
	BIGNUM *f,*ret;
	int i,j,k,num=0,r= -1;
	unsigned char *buf=NULL;
	BN_CTX *ctx=NULL;

	if (BN_num_bits(rsa->n) > OPENSSL_RSA_MAX_MODULUS_BITS)
		{
		RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT, RSA_R_MODULUS_TOO_LARGE);
		return -1;
		}

	if (BN_ucmp(rsa->n, rsa->e) <= 0)
		{
		RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT, RSA_R_BAD_E_VALUE);
		return -1;
		}

	/* for large moduli, enforce exponent limit */
	if (BN_num_bits(rsa->n) > OPENSSL_RSA_SMALL_MODULUS_BITS)
		{
		if (BN_num_bits(rsa->e) > OPENSSL_RSA_MAX_PUBEXP_BITS)
			{
			RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT, RSA_R_BAD_E_VALUE);
			return -1;
			}
		}
	
	if ((ctx=BN_CTX_new()) == NULL) goto err;
	BN_CTX_start(ctx);
	f = BN_CTX_get(ctx);
	ret = BN_CTX_get(ctx);
	num=BN_num_bytes(rsa->n);
	buf = OPENSSL_malloc(num);
	if (!f || !ret || !buf)
		{
		RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT,ERR_R_MALLOC_FAILURE);
		goto err;
		}

	switch (padding)
		{
	case RSA_PKCS1_PADDING:
		i=RSA_padding_add_PKCS1_type_2(buf,num,from,flen);
		break;
#ifndef OPENSSL_NO_SHA
	case RSA_PKCS1_OAEP_PADDING:
	        i=RSA_padding_add_PKCS1_OAEP(buf,num,from,flen,NULL,0);
		break;
#endif
	case RSA_SSLV23_PADDING:
		i=RSA_padding_add_SSLv23(buf,num,from,flen);
		break;
	case RSA_NO_PADDING:
		i=RSA_padding_add_none(buf,num,from,flen);
		break;
	default:
		RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT,RSA_R_UNKNOWN_PADDING_TYPE);
		goto err;
		}
	if (i <= 0) goto err;

	if (BN_bin2bn(buf,num,f) == NULL) goto err;
	
	if (BN_ucmp(f, rsa->n) >= 0)
		{
		/* usually the padding functions would catch this */
		RSAerr(RSA_F_RSA_EAY_PUBLIC_ENCRYPT,RSA_R_DATA_TOO_LARGE_FOR_MODULUS);
		goto err;
		}

	if (rsa->flags & RSA_FLAG_CACHE_PUBLIC)
		if (!BN_MONT_CTX_set_locked(&rsa->_method_mod_n, CRYPTO_LOCK_RSA, rsa->n, ctx))
			goto err;

	if (!rsa->meth->bn_mod_exp(ret,f,rsa->e,rsa->n,ctx,
		rsa->_method_mod_n)) goto err;

	/* put in leading 0 bytes if the number is less than the
	 * length of the modulus */
	j=BN_num_bytes(ret);
	i=BN_bn2bin(ret,&(to[num-j]));
	for (k=0; k<(num-i); k++)
		to[k]=0;

	r=num;
err:
	if (ctx != NULL)
		{
		BN_CTX_end(ctx);
		BN_CTX_free(ctx);
		}
	if (buf != NULL) 
		{
		OPENSSL_cleanse(buf,num);
		OPENSSL_free(buf);
		}
	return(r);
//.........这里部分代码省略.........

static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
		const unsigned char *in, size_t len)
	{
	EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
	CCM128_CONTEXT *ccm = &cctx->ccm;
	/* If not set up, return error */
	if (!cctx->iv_set && !cctx->key_set)
		return -1;
	if (!ctx->encrypt && !cctx->tag_set)
		return -1;
	if (!out)
		{
		if (!in)
			{
			if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L,len))
				return -1;
			cctx->len_set = 1;
			return len;
			}
		/* If have AAD need message length */
		if (!cctx->len_set && len)
			return -1;
		CRYPTO_ccm128_aad(ccm, in, len);
		return len;
		}
	/* EVP_*Final() doesn't return any data */
	if (!in)
		return 0;
	/* If not set length yet do it */
	if (!cctx->len_set)
		{
		if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
			return -1;
		cctx->len_set = 1;
		}
	if (ctx->encrypt)
		{
		if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
						cctx->str) :
				CRYPTO_ccm128_encrypt(ccm, in, out, len))
			return -1;
		cctx->tag_set = 1;
		return len;
		}
	else
		{
		int rv = -1;
		if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
						cctx->str) :
				!CRYPTO_ccm128_decrypt(ccm, in, out, len))
			{
			unsigned char tag[16];
			if (CRYPTO_ccm128_tag(ccm, tag, cctx->M))
				{
				if (!memcmp(tag, ctx->buf, cctx->M))
					rv = len;
				}
			}
		if (rv == -1)
			OPENSSL_cleanse(out, len);
		cctx->iv_set = 0;
		cctx->tag_set = 0;
		cctx->len_set = 0;
		return rv;
		}

	}

//.........这里部分代码省略.........
            for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) {
                sigopt = sk_OPENSSL_STRING_value(sigopts, i);
                if (pkey_ctrl_string(pctx, sigopt) <= 0) {
                    BIO_printf(bio_err, "parameter error \"%s\"\n", sigopt);
                    ERR_print_errors(bio_err);
                    goto end;
                }
            }
        }
    }
    /* we use md as a filter, reading from 'in' */
    else {
        if (md == NULL)
            md = EVP_md5();
        if (!BIO_set_md(bmd, md)) {
            BIO_printf(bio_err, "Error setting digest %s\n", pname);
            ERR_print_errors(bio_err);
            goto end;
        }
    }

    if (sigfile && sigkey) {
        BIO *sigbio;
        sigbio = BIO_new_file(sigfile, "rb");
        siglen = EVP_PKEY_size(sigkey);
        sigbuf = OPENSSL_malloc(siglen);
        if (!sigbio) {
            BIO_printf(bio_err, "Error opening signature file %s\n", sigfile);
            ERR_print_errors(bio_err);
            goto end;
        }
        siglen = BIO_read(sigbio, sigbuf, siglen);
        BIO_free(sigbio);
        if (siglen <= 0) {
            BIO_printf(bio_err, "Error reading signature file %s\n", sigfile);
            ERR_print_errors(bio_err);
            goto end;
        }
    }
    inp = BIO_push(bmd, in);

    if (md == NULL) {
        EVP_MD_CTX *tctx;
        BIO_get_md_ctx(bmd, &tctx);
        md = EVP_MD_CTX_md(tctx);
    }

    if (argc == 0) {
        BIO_set_fp(in, stdin, BIO_NOCLOSE);
        err = do_fp(out, buf, inp, separator, out_bin, sigkey, sigbuf,
                    siglen, NULL, NULL, "stdin", bmd);
    } else {
        const char *md_name = NULL, *sig_name = NULL;
        if (!out_bin) {
            if (sigkey) {
                const EVP_PKEY_ASN1_METHOD *ameth;
                ameth = EVP_PKEY_get0_asn1(sigkey);
                if (ameth)
                    EVP_PKEY_asn1_get0_info(NULL, NULL,
                                            NULL, NULL, &sig_name, ameth);
            }
            md_name = EVP_MD_name(md);
        }
        err = 0;
        for (i = 0; i < argc; i++) {
            int r;
            if (BIO_read_filename(in, argv[i]) <= 0) {
                perror(argv[i]);
                err++;
                continue;
            } else
                r = do_fp(out, buf, inp, separator, out_bin, sigkey, sigbuf,
                          siglen, sig_name, md_name, argv[i], bmd);
            if (r)
                err = r;
            (void)BIO_reset(bmd);
        }
    }
end:
    if (buf != NULL) {
        OPENSSL_cleanse(buf, BUFSIZE);
        OPENSSL_free(buf);
    }
    if (in != NULL)
        BIO_free(in);
    if (passin)
        OPENSSL_free(passin);
    BIO_free_all(out);
    EVP_PKEY_free(sigkey);
    if (sigopts)
        sk_OPENSSL_STRING_free(sigopts);
    if (macopts)
        sk_OPENSSL_STRING_free(macopts);
    if (sigbuf)
        OPENSSL_free(sigbuf);
    if (bmd != NULL)
        BIO_free(bmd);
    apps_shutdown();
    OPENSSL_EXIT(err);
}