Key types
 
  
   - 
    OPENSSL_KEYTYPE_RSA(integer)
- 
    
     
    
   
- 
    OPENSSL_KEYTYPE_DSA(integer)
- 
    
     
    
   
- 
    OPENSSL_KEYTYPE_DH(integer)
- 
    
     
    
   
- 
    OPENSSL_KEYTYPE_EC(integer)
- 
    
     This constant is only available when PHP is compiled with OpenSSL 0.9.8+.
    
   
Note: 
    
This constant was added in 5.2.0.
    
     OPENSSL_KEYTYPE_EC