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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>Hi,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>How I can do an <span style='font-size:10.0pt;font-family:"Courier New"'>RSA_verify_PKCS1_PSS()</span> in OpenSSl 3?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>In OpenSSL 1.0.2 I used:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>unsigned char * decrypted_sign = (unsigned char *)OPENSSL_malloc((int)signature.length());<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>ret = RSA_public_decrypt((int)signature.length(), (unsigned char *)signature.c_str(), decrypted_sign, rsa, RSA_NO_PADDING);<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>ret = RSA_verify_PKCS1_PSS(rsa, (unsigned char *)strPaddedMsg.c_str(), EVP_sha256(), decrypted_sign, -2);<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal>Thanks,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Martin<o:p></o:p></p></div></body></html>