epass2003: properly disable padding

EVP_CIPHER_CTX_set_padding needs to be called after EVP_EncryptInit_ex
and EVP_DecryptInit_ex, otherwise padding is re-enabled, which in turn
causes buffer overruns
Merge pull request #136 from zhalas/epass2003_fix_padding

epass2003: properly disable padding when initializing OpenSSL ciphers.