Class: OpenSSL::BN
Relationships & Source Files | |
Super Chains via Extension / Inclusion / Inheritance | |
Instance Chain:
self,
Comparable
|
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Inherits: | Object |
Defined in: | ext/openssl/ossl_bn.c, ext/openssl/lib/openssl/bn.rb |
Class Method Summary
- .generate_prime
-
.new ⇒ BN
constructor
Construct a new
::OpenSSL
BIGNUM object. -
.pseudo_rand
.pseudo_rand(bits [, fill [, odd]]) -> aBN.
- .pseudo_rand_range(range) ⇒ BN
-
.rand
.rand(bits [, fill [, odd]]) -> aBN.
- .rand_range(range) ⇒ BN
Instance Attribute Summary
- #negative? ⇒ Boolean readonly
- #odd? ⇒ Boolean readonly
- #one? ⇒ Boolean readonly
- #zero? ⇒ Boolean readonly
Instance Method Summary
- #%(bn2) ⇒ BN
- #*(bn2) ⇒ BN
- #**(bn2) ⇒ BN
- #+(bn2) ⇒ BN
- #+ ⇒ BN
- #-(bn2) ⇒ BN
- #- ⇒ BN
- #/
- #<<(bits) ⇒ BN
- #<=>(bn2) ⇒ Integer (also: #cmp)
-
#==(obj) ⇒ Boolean
(also: #===)
Returns
true
only if obj has the same value as bn. -
#===(obj) ⇒ Boolean
Alias for #==.
- #>>(bits) ⇒ BN
- #bit_set? ⇒ Boolean
- #clear_bit!(bit) ⇒ self
-
#cmp(bn2) ⇒ Integer
Alias for #<=>.
- #coerce(other)
- #copy ⇒ Integer (also: #initialize_copy)
-
#eql?(obj) ⇒ Boolean
Returns
true
only if obj is aBN
with the same value as bn. - #gcd(bn2) ⇒ BN
-
#hash ⇒ Integer
Returns a hash code for this object.
-
#initialize_copy ⇒ Integer
Alias for #copy.
- #lshift!(bits) ⇒ self
- #mask_bits!
- #mod_add(bn1, bn2) ⇒ BN
- #mod_exp(bn1, bn2) ⇒ BN
- #mod_inverse(bn2) ⇒ BN
- #mod_mul(bn1, bn2) ⇒ BN
- #mod_sqr(bn2) ⇒ BN
- #mod_sub(bn1, bn2) ⇒ BN
- #num_bits ⇒ Integer
- #num_bytes ⇒ Integer
- #pretty_print(q)
-
#prime? ⇒ Boolean
Performs a Miller-Rabin probabilistic primality test with checks iterations.
-
#prime_fasttest? ⇒ Boolean
Performs a Miller-Rabin primality test.
- #rshift!(bits) ⇒ self
- #set_bit!(bit) ⇒ self
- #sqr ⇒ BN
- #to_bn
- #to_i ⇒ Integer (also: #to_int)
-
#to_int ⇒ Integer
Alias for #to_i.
-
#to_s ⇒ String
Parameters * base -
::Integer
. - #ucmp(bn2) ⇒ Integer
Constructor Details
.new ⇒ BN
.new(bn) ⇒ BN
.new(integer) ⇒ BN
.new(string) ⇒ BN
.new(string, 0 | 2 | 10 | 16) ⇒ BN
BN
.new(bn) ⇒ BN
.new(integer) ⇒ BN
.new(string) ⇒ BN
.new(string, 0 | 2 | 10 | 16) ⇒ BN
Construct a new ::OpenSSL
BIGNUM object.
# File 'ext/openssl/ossl_bn.c', line 184
static VALUE ossl_bn_initialize(int argc, VALUE *argv, VALUE self) { BIGNUM *bn; VALUE str, bs; int base = 10; char *ptr; if (rb_scan_args(argc, argv, "11", &str, &bs) == 2) { base = NUM2INT(bs); } if (RB_INTEGER_TYPE_P(str)) { GetBN(self, bn); integer_to_bnptr(str, bn); return self; } if (RTEST(rb_obj_is_kind_of(str, cBN))) { BIGNUM *other; GetBN(self, bn); GetBN(str, other); /* Safe - we checked kind_of? above */ if (!BN_copy(bn, other)) { ossl_raise(eBNError, NULL); } return self; } GetBN(self, bn); switch (base) { case 0: ptr = StringValuePtr(str); if (!BN_mpi2bn((unsigned char *)ptr, RSTRING_LENINT(str), bn)) { ossl_raise(eBNError, NULL); } break; case 2: ptr = StringValuePtr(str); if (!BN_bin2bn((unsigned char *)ptr, RSTRING_LENINT(str), bn)) { ossl_raise(eBNError, NULL); } break; case 10: if (!BN_dec2bn(&bn, StringValueCStr(str))) { ossl_raise(eBNError, NULL); } break; case 16: if (!BN_hex2bn(&bn, StringValueCStr(str))) { ossl_raise(eBNError, NULL); } break; default: ossl_raise(rb_eArgError, "invalid radix %d", base); } return self; }
Class Method Details
.generate_prime
[ GitHub ].pseudo_rand
.pseudo_rand
(bits [, fill [, odd]]) -> aBN
.pseudo_rand_range(range) ⇒ BN
.rand
.rand
(bits [, fill [, odd]]) -> aBN
.rand_range(range) ⇒ BN
Instance Attribute Details
#negative? ⇒ Boolean
(readonly)
[ GitHub ]
# File 'ext/openssl/ossl_bn.c', line 381
static VALUE ossl_bn_is_negative(VALUE self) { BIGNUM *bn; GetBN(self, bn); if (BN_is_zero(bn)) return Qfalse; return BN_is_negative(bn) ? Qtrue : Qfalse; }
#odd? ⇒ Boolean
(readonly)
[ GitHub ]
#one? ⇒ Boolean
(readonly)
[ GitHub ]
#zero? ⇒ Boolean
(readonly)
[ GitHub ]
Instance Method Details
#%(bn2) ⇒ BN
#*(bn2) ⇒ BN
#**(bn2) ⇒ BN
#+(bn2) ⇒ BN
#+ ⇒ BN
# File 'ext/openssl/ossl_bn.c', line 873
static VALUE ossl_bn_uplus(VALUE self) { return self; }
#-(bn2) ⇒ BN
#- ⇒ BN
# File 'ext/openssl/ossl_bn.c', line 883
static VALUE ossl_bn_uminus(VALUE self) { VALUE obj; BIGNUM *bn1, *bn2; GetBN(self, bn1); obj = NewBN(cBN); bn2 = BN_dup(bn1); if (!bn2) ossl_raise(eBNError, "BN_dup"); SetBN(obj, bn2); BN_set_negative(bn2, !BN_is_negative(bn2)); return obj; }
#/
[ GitHub ]
#<<(bits) ⇒ BN
#<=>(bn2) ⇒ Integer Also known as: #cmp
#==(obj) ⇒ Boolean
Also known as: #===
Returns true
only if obj has the same value as bn. Contrast this with #eql?, which requires obj to be BN
.
# File 'ext/openssl/ossl_bn.c', line 935
static VALUE ossl_bn_eq(VALUE self, VALUE other) { BIGNUM *bn1, *bn2; GetBN(self, bn1); other = try_convert_to_bn(other); if (NIL_P(other)) return Qfalse; GetBN(other, bn2); if (!BN_cmp(bn1, bn2)) { return Qtrue; } return Qfalse; }
#==(obj) ⇒ Boolean
#===(obj) ⇒ Boolean
Boolean
#===(obj) ⇒ Boolean
Alias for #==.
#>>(bits) ⇒ BN
#bit_set? ⇒ Boolean
#clear_bit!(bit) ⇒ self
Alias for #<=>.
#coerce(other)
[ GitHub ]# File 'ext/openssl/ossl_bn.c', line 325
static VALUE ossl_bn_coerce(VALUE self, VALUE other) { switch(TYPE(other)) { case T_STRING: self = ossl_bn_to_s(0, NULL, self); break; case T_FIXNUM: case T_BIGNUM: self = ossl_bn_to_i(self); break; default: if (!RTEST(rb_obj_is_kind_of(other, cBN))) { ossl_raise(rb_eTypeError, "Don't know how to coerce"); } } return rb_assoc_new(other, self); }
#copy ⇒ Integer Also known as: #initialize_copy
# File 'ext/openssl/ossl_bn.c', line 851
static VALUE ossl_bn_copy(VALUE self, VALUE other) { BIGNUM *bn1, *bn2; rb_check_frozen(self); if (self == other) return self; GetBN(self, bn1); bn2 = GetBNPtr(other); if (!BN_copy(bn1, bn2)) { ossl_raise(eBNError, NULL); } return self; }
#eql?(obj) ⇒ Boolean
Returns true
only if obj is a BN
with the same value as bn. Contrast this with #==, which performs type conversions.
# File 'ext/openssl/ossl_bn.c', line 960
static VALUE ossl_bn_eql(VALUE self, VALUE other) { BIGNUM *bn1, *bn2; if (!rb_obj_is_kind_of(other, cBN)) return Qfalse; GetBN(self, bn1); GetBN(other, bn2); return BN_cmp(bn1, bn2) ? Qfalse : Qtrue; }
#gcd(bn2) ⇒ BN
#hash ⇒ Integer
Returns a hash code for this object.
See also Object#hash
.
# File 'ext/openssl/ossl_bn.c', line 981
static VALUE ossl_bn_hash(VALUE self) { BIGNUM *bn; VALUE tmp, hash; unsigned char *buf; int len; GetBN(self, bn); len = BN_num_bytes(bn); buf = ALLOCV(tmp, len); if (BN_bn2bin(bn, buf) != len) { ALLOCV_END(tmp); ossl_raise(eBNError, "BN_bn2bin"); } hash = ST2FIX(rb_memhash(buf, len)); ALLOCV_END(tmp); return hash; }
Alias for #copy.
#lshift!(bits) ⇒ self
#mask_bits!
[ GitHub ]
#mod_add(bn1, bn2) ⇒ BN
#mod_exp(bn1, bn2) ⇒ BN
#mod_inverse(bn2) ⇒ BN
#mod_mul(bn1, bn2) ⇒ BN
#mod_sqr(bn2) ⇒ BN
#mod_sub(bn1, bn2) ⇒ BN
#num_bits ⇒ Integer
#num_bytes ⇒ Integer
#pretty_print(q)
[ GitHub ]
#prime? ⇒ Boolean
#prime?(checks) ⇒ Boolean
Boolean
#prime?(checks) ⇒ Boolean
Performs a Miller-Rabin probabilistic primality test with checks iterations. If checks is not specified, a number of iterations is used that yields a false positive rate of at most 2^-80 for random input.
Parameters
-
checks - integer
# File 'ext/openssl/ossl_bn.c', line 1015
static VALUE ossl_bn_is_prime(int argc, VALUE *argv, VALUE self) { BIGNUM *bn; VALUE vchecks; int checks = BN_prime_checks; if (rb_scan_args(argc, argv, "01", &vchecks) == 1) { checks = NUM2INT(vchecks); } GetBN(self, bn); switch (BN_is_prime_ex(bn, checks, ossl_bn_ctx, NULL)) { case 1: return Qtrue; case 0: return Qfalse; default: ossl_raise(eBNError, NULL); } /* not reachable */ return Qnil; }
#prime_fasttest? ⇒ Boolean
#prime_fasttest?(checks) ⇒ Boolean
#prime_fasttest?(checks, trial_div) ⇒ Boolean
Boolean
#prime_fasttest?(checks) ⇒ Boolean
#prime_fasttest?(checks, trial_div) ⇒ Boolean
Performs a Miller-Rabin primality test. This is same as #prime? except this first attempts trial divisions with some small primes.
Parameters
-
checks - integer
-
trial_div - boolean
# File 'ext/openssl/ossl_bn.c', line 1051
static VALUE ossl_bn_is_prime_fasttest(int argc, VALUE *argv, VALUE self) { BIGNUM *bn; VALUE vchecks, vtrivdiv; int checks = BN_prime_checks, do_trial_division = 1; rb_scan_args(argc, argv, "02", &vchecks, &vtrivdiv); if (!NIL_P(vchecks)) { checks = NUM2INT(vchecks); } GetBN(self, bn); /* handle true/false */ if (vtrivdiv == Qfalse) { do_trial_division = 0; } switch (BN_is_prime_fasttest_ex(bn, checks, ossl_bn_ctx, do_trial_division, NULL)) { case 1: return Qtrue; case 0: return Qfalse; default: ossl_raise(eBNError, NULL); } /* not reachable */ return Qnil; }
#rshift!(bits) ⇒ self
#set_bit!(bit) ⇒ self
#sqr ⇒ BN
#to_bn
[ GitHub ]# File 'ext/openssl/ossl_bn.c', line 319
static VALUE ossl_bn_to_bn(VALUE self) { return self; }
#to_i ⇒ Integer Also known as: #to_int
# File 'ext/openssl/ossl_bn.c', line 301
static VALUE ossl_bn_to_i(VALUE self) { BIGNUM *bn; char *txt; VALUE num; GetBN(self, bn); if (!(txt = BN_bn2hex(bn))) { ossl_raise(eBNError, NULL); } num = rb_cstr_to_inum(txt, 16, Qtrue); OPENSSL_free(txt); return num; }
Alias for #to_i.
#to_s ⇒ String
#to_s(base) ⇒ String
String
#to_s(base) ⇒ String
Parameters
-
base -
::Integer
Valid values:-
0 - MPI
-
2 - binary
-
10 - the default
-
16 - hex
-
# File 'ext/openssl/ossl_bn.c', line 257
static VALUE ossl_bn_to_s(int argc, VALUE *argv, VALUE self) { BIGNUM *bn; VALUE str, bs; int base = 10, len; char *buf; if (rb_scan_args(argc, argv, "01", &bs) == 1) { base = NUM2INT(bs); } GetBN(self, bn); switch (base) { case 0: len = BN_bn2mpi(bn, NULL); str = rb_str_new(0, len); if (BN_bn2mpi(bn, (unsigned char *)RSTRING_PTR(str)) != len) ossl_raise(eBNError, NULL); break; case 2: len = BN_num_bytes(bn); str = rb_str_new(0, len); if (BN_bn2bin(bn, (unsigned char *)RSTRING_PTR(str)) != len) ossl_raise(eBNError, NULL); break; case 10: if (!(buf = BN_bn2dec(bn))) ossl_raise(eBNError, NULL); str = ossl_buf2str(buf, rb_long2int(strlen(buf))); break; case 16: if (!(buf = BN_bn2hex(bn))) ossl_raise(eBNError, NULL); str = ossl_buf2str(buf, rb_long2int(strlen(buf))); break; default: ossl_raise(rb_eArgError, "invalid radix %d", base); } return str; }