RSA Temp. Space Qualifiers
[RSA]

Temp. space qualifiers for RSA based cryptography. More...

Defines
#define	C4E_RSA_TMPID_KEY_CHECK
	Temp. space qualifier associated with c4e_rsa_keychk_prv() and c4e_rsa_keychk_pub().
#define	C4E_RSA_TMPID_PKCS1V1_ENCRYPT
	Temp. space qualifier associated with c4e_rsa_encrypt_pkcs1v1().
#define	C4E_RSA_TMPID_PKCS1V1_DECRYPT
	Temp. space qualifier associated with c4e_rsa_decrypt_pkcs1v1().
#define	C4E_RSA_TMPID_PKCS1V1_SIGN
	Temp. space qualifier associated with c4e_rsa_sign_pkcs1v1().
#define	C4E_RSA_TMPID_PKCS1V1_VERIFY
	Temp. space qualifier associated with c4e_rsa_verify_pkcs1v1().
#define	C4E_RSA_TMPID_PKCS1V2_ENCRYPT
#define	C4E_RSA_TMPID_PKCS1V2_DECRYPT
	Temp. space qualifier associated with c4e_rsa_decrypt_pkcs1v2().
#define	C4E_RSA_TMPID_PKCS1V2_SIGN
	Temp. space qualifier associated with c4e_rsa_sign_pkcs1v2().
#define	C4E_RSA_TMPID_PKCS1V2_VERIFY
	Temp. space qualifier associated with c4e_rsa_verify_pkcs1v2().
#define	C4E_RSA_TMPID_PKCS1_MAX
	Temp. space qualifier for the best-case.
#define	C4E_RSA_TMPID_PKCS1_WORSTCASE
	Temp. space qualifier for the worst-case.

---

Detailed Description

Temp. space qualifiers for RSA based cryptography.

The temp. space qualifiers shall be used as first argument to macro C4E_RSA_TMP_NUM(). Finally they determine the size of temporary memory space (an array of elements of type C4eAlgo32Digit), which must be provided by the caller to some RSA functions.

---

Define Documentation

#define C4E_RSA_TMPID_PKCS1V2_ENCRYPT

Temp. space qualifier associated with c4e_rsa_encrypt_pkcs1v2()

Definition at line 158 of file c4e_rsa.h.

#define C4E_RSA_TMPID_PKCS1_MAX

Temp. space qualifier for the best-case.

This means: It can be used for all RSA functions under the precondition p < q respective C4eRsaKeyPrv::p::z::size < C4eRsaKeyPrv::q::z::size. But notice that using this define may allocate more memory space as required by a particular RSA function.

Note:

The condition p < q can be ensured by exchanging p and q during key generation. If OpenSSL is used for that purpose, then this precondition seems to be always true.

Definition at line 199 of file c4e_rsa.h.

#define C4E_RSA_TMPID_PKCS1_WORSTCASE

Temp. space qualifier for the worst-case.

This means:

• requires the maximum memory space, with respect to all other temp. space qualifiers here;
• is without any restriction to the size of RSA key prime numbers p and q (in contrast see C4E_RSA_TMPID_PKCS1_MAX).

Definition at line 211 of file c4e_rsa.h.