1EVP_PKEY_get_default_digest(3)      OpenSSL     EVP_PKEY_get_default_digest(3)
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NAME

6       EVP_PKEY_get_default_digest_nid - get default signature digest
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SYNOPSIS

9        #include <openssl/evp.h>
10        int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid);
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DESCRIPTION

13       The EVP_PKEY_get_default_digest_nid() function sets pnid to the default
14       message digest NID for the public key signature operations associated
15       with key pkey.
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NOTES

18       For all current standard OpenSSL public key algorithms SHA1 is
19       returned.
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RETURN VALUES

22       The EVP_PKEY_get_default_digest_nid() function returns 1 if the message
23       digest is advisory (that is other digests can be used) and 2 if it is
24       mandatory (other digests can not be used).  It returns 0 or a negative
25       value for failure. In particular a return value of -2 indicates the
26       operation is not supported by the public key algorithm.
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SEE ALSO

29       EVP_PKEY_CTX_new(3), EVP_PKEY_sign(3), EVP_PKEY_verify(3),
30       EVP_PKEY_verify_recover(3),
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HISTORY

33       This function was first added to OpenSSL 1.0.0.
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371.0.1e                            2013-02-11    EVP_PKEY_get_default_digest(3)
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