Docs For Class Crypt_RSA_Math

Crypt_RSA_Math_GMP (Constructor) [line 60]

Crypt_RSA_Math_GMP Crypt_RSA_Math_GMP(
)

Crypt_RSA_Math_GMP constructor.

Checks an existance of PHP GMP package. See http://php.net/gmp for details.

On failure saves error description in $this->errstr

Access: public

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bin2int [line 83]

gmp bin2int(
string
$str)

Transforms binary representation of large integer into its native form.

Example of transformation: $str = "\x12\x34\x56\x78\x90"; $num = 0x9078563412;

Return: resource
Access: public

Parameters:

string $str —

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bitLen [line 278]

int bitLen(
gmp
$num)

Returns bit length of number $num

Access: public

Parameters:

gmp $num — resource $num

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bitOr [line 305]

gmp bitOr(
gmp
$num1, gmp
$num2, int
$start_pos)

Calculates bitwise or of $num1 and $num2, starting from bit $start_pos for number $num1

Return: resource
Access: public

Parameters:

int	`$start_pos`	—
gmp	`$num1`	—	resource $num1
gmp	`$num2`	—	resource $num2

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cmpAbs [line 168]

int cmpAbs(
gmp
$num1, gmp
$num2)

Compares abs($num1) to abs($num2).

Returns: -1, if abs($num1) < abs($num2) 0, if abs($num1) == abs($num2) 1, if abs($num1) > abs($num2)

Access: public

Parameters:

gmp	`$num1`	—	resource $num1
gmp	`$num2`	—	resource $num2

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dec [line 227]

gmp dec(
gmp
$num)

Calculates $num - 1

Return: resource
Access: public

Parameters:

gmp $num — resource $num

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GCD [line 252]

gmp GCD(
gmp
$num1, gmp
$num2)

Finds greatest common divider (GCD) of $num1 and $num2

Return: resource
Access: public

Parameters:

gmp	`$num1`	—	resource $num1
gmp	`$num2`	—	resource $num2

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getPrime [line 194]

void getPrime(
int
$bits_cnt, 
$random_generator, string
$rnd_generator)

Generates prime number with length $bits_cnt using $random_generator as random generator function.

Access: public

Parameters:

int	`$bits_cnt`	—
string	`$rnd_generator`	—
	`$random_generator`	—

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getWrapperName [line 355]

string getWrapperName(
)

Returns name of current wrapper

Return: name of current wrapper
Access: public

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int2bin [line 106]

string int2bin(
gmp
$num)

Transforms large integer into binary representation.

Example of transformation: $num = 0x9078563412; $str = "\x12\x34\x56\x78\x90";

Access: public

Parameters:

gmp $num — resource $num

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invmod [line 266]

gmp invmod(
gmp
$num, gmp
$mod)

Finds inverse number $inv for $num by modulus $mod, such as: $inv * $num = 1 (mod $mod)

Return: resource
Access: public

Parameters:

gmp	`$num`	—	resource $num
gmp	`$mod`	—	resource $mod

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isOne [line 239]

bool isOne(
gmp
$num)

Returns true, if $num is equal to one. Else returns false

Access: public

Parameters:

gmp $num — resource $num

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mod [line 151]

string mod(
string
$num1, string
$num2)

Calculates $num1 % $num2

Access: public

Parameters:

string	`$num1`	—
string	`$num2`	—

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mul [line 138]

gmp mul(
gmp
$num1, gmp
$num2)

Calculates $num1 * $num2

Return: resource
Access: public

Parameters:

gmp	`$num1`	—	resource $num1
gmp	`$num2`	—	resource $num2

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powmod [line 125]

gmp powmod(
gmp
$num, gmp
$pow, gmp
$mod)

Calculates pow($num, $pow) (mod $mod)

Return: resource
Access: public

Parameters:

gmp	`$num`	—	resource $num
gmp	`$pow`	—	resource $pow
gmp	`$mod`	—	resource $mod

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subint [line 333]

gmp subint(
gmp
$num, int
$start, int
$length)

Returns part of number $num, starting at bit position $start with length $length

Return: resource
Access: public

Parameters:

gmp	`$num`	—	resource $num
int	`$start`	—	start
int	`$length`	—	length

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Class: Crypt_RSA_Math_GMP

Class Overview

Author(s):

Version:

Copyright:

Variables

Methods

Inherited Variables

Inherited Methods

Class Details

Class Variables

$errstr = ''

Method Detail

Crypt_RSA_Math_GMP (Constructor) [line 60]

bin2int [line 83]

Parameters:

bitLen [line 278]

Parameters:

bitOr [line 305]

Parameters:

cmpAbs [line 168]

Parameters:

dec [line 227]

Parameters:

GCD [line 252]

Parameters:

getPrime [line 194]

Parameters:

getWrapperName [line 355]

int2bin [line 106]

Parameters:

invmod [line 266]

Parameters:

isOne [line 239]

Parameters:

mod [line 151]

Parameters:

mul [line 138]

Parameters:

powmod [line 125]

Parameters:

subint [line 333]

Parameters: