On Mon, Apr 04, 2016, Abe Racioppo wrote: > Hey guys, > > I'm trying to use the CMS operations in libcrypto but with a symmetric key > encryption key instead of x509. > > I'm thinking I want to use a combination of > > CMS_RecipientInfo_set0_pkey, > SMIME_write_CMS, > and > CMS_EncryptedData_encrypt. > > Has anyone done this before and can give me some direction? This is my > first time working with openssl and am getting kinda lost. > You have several options here. You can just use the encrypted data type with a key directly. You can use the enveloped data type with a symmetric wrapping key. You can use the enveloped data type with a password based recipient info. Which you use depends on the application you have in mind. In the first case you just call CMS_EncryptData_encrypt() followed by SMIME_write_CMS(). Steve. -- Dr Stephen N. Henson. OpenSSL project core developer. Commercial tech support now available see: http://www.openssl.org
