Lazily initialize a shared Montgomery context under a lock.
Declared in <openssl/bn.h>
BN_MONT_CTX*
BN_MONT_CTX_set_locked(
BN_MONT_CTX** pmont,
CRYPTO_RWLOCK* lock,
BIGNUM const* mod,
BN_CTX* ctx);The initialized Montgomery context at *pmont, or NULL on error.
| Name | Description |
|---|---|
| pmont | Address of the Montgomery context pointer; allocated and set on first use. |
| lock | Read/write lock serializing initialization of *pmont. |
| mod | Modulus used to build the Montgomery context. |
| ctx | BN_CTX scratch space for the initialization. |