from subprocess import call
print("conversion available: ")
print("1: PEM to DER")
print("2: PEM to P7B")
print("3: PEM to PFX")

print("4: pfx to PEM")
print("5: pfx to P7B")
print("6: pfx to DER")

print("7: DER to PEM")
print("8: DER to pfx")
print("9: DER to P7B")

print("10: P7B to PEM")
print("11: P7B to pfx")
print("12: P7B to DER")

choise = input("conversion number: ")

if choise == 1:
    print("PEM -> DER")
    print("==========")
    nome = input('Inserisci il nome del file .pem: ')
    cmd = "openssl x509 -outform der -in "+nome+".pem -out certificate.der"
if choise == 2:
    print("PEM to P7B")
    print("==========")
    nome = input('Inserisci il nome del file .pem: ')
    cmd = "openssl crl2pkcs7 -nocrl -certfile "+nome+".pem -out certificatename.p7b -certfile CACert.cer"
if choise == 3:
    print("PEM -> PFX")
    print("==========")
    nome = input('Inserisci il nome del file .PEM: ')
    cmd = "openssl pkcs12 -export -in cert.cer -inkey "+nome+".pem -out certificate.pfx -certfile CA.cer"

if choise == 4:
    print("pfx to PEM")
    print("==========")
    nome = input('Inserisci il nome del file .pfx: ')
    cmd = "openssl pkcs12 -in "+nome+".pfx -out certificatename.pem"
if choise == 5:
    print("pfx to P7B")
    print("==========")
    nome = input('Inserisci il nome del file .pfx: ')
    cmd = "openssl pkcs12 -in "+nome+".pfx -out certificatename.pem"
    decrypted = call([cmd], shell=True)
    cmd = "openssl crl2pkcs7 -nocrl -certfile certificatename.pem -out certificatename.p7b -certfile CACert.cer"
if choise == 6:
    print("pfx to DER")
    print("==========")
    nome = input('Inserisci il nome del file .pfx: ')
    cmd = "openssl pkcs12 -in "+nome+".pfx -nocerts -nodes -out certificatename.pem"
    decrypted = call([cmd], shell=True)
    cmd = "openssl x509 -outform der -in certificatename.pem -out certificate.der"

if choise == 7:
    print("DER -> PEM")
    print("==========")
    nome = input('Inserisci il nome del file .der: ')
    cmd = "openssl x509 -inform der -in "+nome+".der -out certificatename.pem"
if choise == 8:
    print("DER -> pfx")
    print("==========")
    nome = input('Inserisci il nome del file .der: ')
    cmd = "openssl x509 -inform der -in "+nome+".der -out certificatename.pem"
    decrypted = call([cmd], shell=True)
    cmd = "openssl pkcs12 -export -in cert.cer -inkey certificatename.pem -out certificate.pfx -certfile CA.cer"
if choise == 9:
    print("DER -> P7B")
    print("==========")
    nome = input('Inserisci il nome del file .der: ')
    cmd = "openssl x509 -inform der -in "+nome+".der -out certificatename.pem"
    decrypted = call([cmd], shell=True)
    cmd = "openssl crl2pkcs7 -nocrl -certfile certificatename.pem -out certificatename.p7b -certfile CACert.cer"
if choise == 10:
    print("P7B -> PEM")
    print("==========")
    nome = input('Inserisci il nome del file .p7b: ')
    cmd = "openssl pkcs7 -print_certs -in "+nome+".p7b -out certificate.pem"
if choise == 11:
    print("P7B -> pfx")
    print("==========")
    nome = input('Inserisci il nome del file .p7b: ')
    cmd = "openssl pkcs7 -print_certs -in "+nome+".p7b -out certificate.pem"
    decrypted = call([cmd], shell=True)
    cmd = "openssl pkcs12 -export -in certificate.pem -inkey privateKey.key -out certificate.pfx -certfile CACert.cer"
if choise == 12:
    print("P7B -> DER")
    print("==========")
    nome = input('Inserisci il nome del file .p7b: ')
    cmd = "openssl pkcs7 -print_certs -in "+nome+".p7b -out certificate.pem"
    decrypted = call([cmd], shell=True)
    cmd = "openssl x509 -outform der -in certificate.pem -out certificate.der"

decrypted = call([cmd], shell= True)
print(decrypted)