08-17-2008
If you keep a dummy file whose modification date indicates when the service was restarted, you can figure out whether FILE or the dummy file is newer. If FILE is newer then it was modified after the service was last restarted. But it requires the discipline that you update the timestamp of the dummy file each time you restart the service.
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LEARN ABOUT CENTOS
rsa_sign_asn1_octet_string
RSA_sign_ASN1_OCTET_STRING(3) OpenSSL RSA_sign_ASN1_OCTET_STRING(3)
NAME
RSA_sign_ASN1_OCTET_STRING, RSA_verify_ASN1_OCTET_STRING - RSA signatures
SYNOPSIS
#include <openssl/rsa.h>
int RSA_sign_ASN1_OCTET_STRING(int dummy, unsigned char *m,
unsigned int m_len, unsigned char *sigret, unsigned int *siglen,
RSA *rsa);
int RSA_verify_ASN1_OCTET_STRING(int dummy, unsigned char *m,
unsigned int m_len, unsigned char *sigbuf, unsigned int siglen,
RSA *rsa);
DESCRIPTION
RSA_sign_ASN1_OCTET_STRING() signs the octet string m of size m_len using the private key rsa represented in DER using PKCS #1 padding. It
stores the signature in sigret and the signature size in siglen. sigret must point to RSA_size(rsa) bytes of memory.
dummy is ignored.
The random number generator must be seeded prior to calling RSA_sign_ASN1_OCTET_STRING().
RSA_verify_ASN1_OCTET_STRING() verifies that the signature sigbuf of size siglen is the DER representation of a given octet string m of
size m_len. dummy is ignored. rsa is the signer's public key.
RETURN VALUES
RSA_sign_ASN1_OCTET_STRING() returns 1 on success, 0 otherwise. RSA_verify_ASN1_OCTET_STRING() returns 1 on successful verification, 0
otherwise.
The error codes can be obtained by ERR_get_error(3).
BUGS
These functions serve no recognizable purpose.
SEE ALSO
ERR_get_error(3), objects(3), rand(3), rsa(3), RSA_sign(3), RSA_verify(3)
HISTORY
RSA_sign_ASN1_OCTET_STRING() and RSA_verify_ASN1_OCTET_STRING() were added in SSLeay 0.8.
1.0.1e 2013-02-11 RSA_sign_ASN1_OCTET_STRING(3)