less than 1024 rsa key

[Tony Lu]

Can anybody tell me how to create a certificate which key size is less than 1024? C:\test\openssl\out32dll>openssl genrsa  -out lsg1.key 64 Loading 'screen' into random state - done warning, not much extra random data, consider using the -rand option Generating RSA private key, 64 bit long modulus ..+++++++++++++++++++++++++++ .+++++++++++++++++++++++++++ e is 65537 (0x10001)   C:\test\openssl\out32dll>openssl req -new -x509 -days 365 -key lsg1.key -out lsg 1.crt Using configuration from openssl.cnf You are about to be asked to enter information that will be incorporated into your certificate request. What you are about to enter is what is called a Distinguished Name or a DN. There are quite a few fields but you can leave some blank For some fields there will be a default value, If you enter '.', the field will be left blank. ----- Country Name (2 letter code) [AU]:ca State or Province Name (full name) [Some-State]:dkdk Locality Name (eg, city) []:dldld Organization Name (eg, company) [Internet Widgits Pty Ltd]:dkkd Organizational Unit Name (eg, section) []:kdkd Common Name (eg, YOUR name) []:dkkdkd Email Address []:kdkdkdkd 4293375799:error:04075070:rsa routines:RSA_sign:digest too big for rsa key:.\cry pto\rsa\rsa_sign.c:114: 4293375799:error:0D072006:asn1 encoding routines:ASN1_sign:bad get asn1 object c all:.\crypto\asn1\a_sign.c:129: