Ces commandes fonctionnent mais demande la phrase pass
generation cles
openssl genrsa -out c1.pem -des3 -passout pass:monpassword 1024
extraction cle publique
openssl rsa -in c1.pem -passin pass:monpassword -pubout -out c2.pem
chiffrer by prive
openssl rsautl -encrypt -in tocrypt.txt -inkey c1.pem -out tocryptpri.txt -passin pass:monpassword
chiffrer by public
openssl rsautl -in tocrypt.txt -out tocryptpub.txt -encrypt -pubin -inkey c2.pem
dechiffrer
openssl rsautl -decrypt -in tocryptpri.txt -inkey c1.pem -out tocryptout.txt -passin pass:monpassword
openssl rsautl -decrypt -in tocryptpub.txt -inkey c1.pem -out tocryptout2.txt -passin pass:monpassword
calcul empreinte fichier
openssl dgst -binary -out tocrypt.txt.hash tocrypt.txt
signer une empreinte
openssl rsautl -sign -in tocrypt.txt.hash -inkey c1.pem -out tocrypt.txt.hash.sign -passin pass:monpassword
verifier l'empreinte
openssl rsautl -in tocrypt.txt.hash.sign -verify -inkey c2.pem -pubin -out tocrypt.txt.hash.sign.verify
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