RSA_PRINT(3) | Library Functions Manual | RSA_PRINT(3)

# NAME

`RSA_print`, `RSA_print_fp`, `DSAparams_print`, `DSAparams_print_fp`, `DSA_print`, `DSA_print_fp`, `DHparams_print`, `DHparams_print_fp` — print cryptographic parameters

# SYNOPSIS

library “libcrypto”
`#include <openssl/rsa.h>`

int
`RSA_print`(BIO *bp, RSA *x, int offset);

int
`RSA_print_fp`(FILE *fp, RSA *x, int offset);

`#include <openssl/dsa.h>`

int
`DSAparams_print`(BIO *bp, DSA *x);

int
`DSAparams_print_fp`(FILE *fp, DSA *x);

int
`DSA_print`(BIO *bp, DSA *x, int offset);

int
`DSA_print_fp`(FILE *fp, DSA *x, int offset);

`#include <openssl/dh.h>`

int
`DHparams_print`(BIO *bp, DH *x);

int
`DHparams_print_fp`(FILE *fp, DH *x);

# DESCRIPTION

A human-readable hexadecimal output of the components of the RSA key, DSA parameters or key or DH parameters is printed to bp or fp.

The output lines are indented by offset spaces.

# RETURN VALUES

These functions return 1 on success or 0 on error.

# SEE ALSO

BN_bn2bin(3), DH_get0_pqg(3), DH_new(3), DSA_get0_pqg(3), RSA_get0_key(3), RSA_new(3)

# HISTORY

`RSA_print`() and `DHparams_print`() first appeared in SSLeay 0.5.1. `RSA_print_fp`(), `DSA_print`(), and `DHparams_print_fp`() first appeared in SSLeay 0.6.0. `DSA_print_fp`() first appeared in SSLeay 0.8.0. All these functions have been available since OpenBSD 2.4.

June 8, 2025 | Debian