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| 63.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). 64.\" Fear. Run. Save yourself. No user-serviceable parts. 65. \" fudge factors for nroff and troff 66.if n \{\ 67. ds #H 0 68. ds #V .8m 69. ds #F .3m 70. ds #[ \f1 --- 48 unchanged lines hidden (view full) --- 119. ds Th \o'LP' 120. ds ae ae 121. ds Ae AE 122.\} 123.rm #[ #] #H #V #F C 124.\" ======================================================================== 125.\" 126.IX Title "BIO_f_cipher 3" |
| 127.TH BIO_f_cipher 3 "2010-11-16" "0.9.8p" "OpenSSL" 128.\" For nroff, turn off justification. Always turn off hyphenation; it makes 129.\" way too many mistakes in technical documents. 130.if n .ad l 131.nh |
| 132.SH "NAME" 133BIO_f_cipher, BIO_set_cipher, BIO_get_cipher_status, BIO_get_cipher_ctx \- cipher BIO filter 134.SH "SYNOPSIS" 135.IX Header "SYNOPSIS" 136.Vb 2 137\& #include <openssl/bio.h> 138\& #include <openssl/evp.h> |
| 139\& |
| 140\& BIO_METHOD * BIO_f_cipher(void); 141\& void BIO_set_cipher(BIO *b,const EVP_CIPHER *cipher, 142\& unsigned char *key, unsigned char *iv, int enc); 143\& int BIO_get_cipher_status(BIO *b) 144\& int BIO_get_cipher_ctx(BIO *b, EVP_CIPHER_CTX **pctx) 145.Ve 146.SH "DESCRIPTION" 147.IX Header "DESCRIPTION" 148\&\fIBIO_f_cipher()\fR returns the cipher \s-1BIO\s0 method. This is a filter 149\&\s-1BIO\s0 that encrypts any data written through it, and decrypts any data 150read from it. It is a \s-1BIO\s0 wrapper for the cipher routines 151\&\fIEVP_CipherInit()\fR, \fIEVP_CipherUpdate()\fR and \fIEVP_CipherFinal()\fR. 152.PP |
| 153Cipher BIOs do not support \fIBIO_gets()\fR or \fIBIO_puts()\fR. |
| 154.PP 155\&\fIBIO_flush()\fR on an encryption \s-1BIO\s0 that is being written through is 156used to signal that no more data is to be encrypted: this is used 157to flush and possibly pad the final block through the \s-1BIO\s0. 158.PP 159\&\fIBIO_set_cipher()\fR sets the cipher of \s-1BIO\s0 \fBb\fR to \fBcipher\fR using key \fBkey\fR 160and \s-1IV\s0 \fBiv\fR. \fBenc\fR should be set to 1 for encryption and zero for 161decryption. --- 39 unchanged lines hidden --- |