For what it's worth, here are all the functions with over 4Kb of stack usage
(at least, the way I compiled/analyzed it) for OpenSSL-0.9.6c.
4108 PKCS7_decrypt
4124 SMIME_text
4236 PKCS7_verify
4252 PKCS12_pbe_crypt
4268 PKCS12_decrypt_d2i
4268 PKCS12_i2d_encrypt
4380 PKCS5_pbe2_set
4764 d2i_RSA_NET_2
4780 i2d_RSA_NET
5276 PEM_X509_INFO_write_bio
5308 PEM_do_header
5356 PEM_ASN1_write_bio
8192 des_read_pw_string
8204 probable_prime
10284 BIO_vprintf
16412 des_read_2passwords
16412 des_read_password
For a multithreaded program, I consider 4Kb to be reasonable provided the
call depth is not expected to be unusually large. 8Kb is reasonable so long
as the function is shallow (not called from within the library except by a
thin wrapper and doesn't call deeply into the library). More than 8kb is not
reasonable, IMO.
--
David Schwartz
<[EMAIL PROTECTED]>
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