practice-golang / hello-rsa

rsa keygen

RSA keygen

practice

Using tool

• openssl
  • https://www.openssl.org
  • https://wiki.openssl.org/index.php/Binaries

$ openssl genrsa -out key.pem 1024
$ openssl rsa -in pub.pem -pubout -out key.pem
# dkim
# v=DKIM1;k=rsa;p=public_key_value_in_pub.pem

DMARC

v=DMARC1;p=none;sp=none;pct=100;rua=mailto:[e-mail];ruf=mailto:[e-mail];ri=86400;aspf=r;adkim=r;fo=1

v=DMARC1;p=none;rua=mailto:[e-mail]