Class: OpenSSL::HMAC

Inherits:
Object
  • Object
show all
Defined in:
ossl_hmac.c

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(key, digest) ⇒ Object 



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# File 'ossl_hmac.c', line 60

static VALUE
ossl_hmac_initialize(VALUE self, VALUE key, VALUE digest)
{
    HMAC_CTX *ctx;

    StringValue(key);
    GetHMAC(self, ctx);
    HMAC_Init_ex(ctx, RSTRING(key)->ptr, RSTRING(key)->len,
		 GetDigestPtr(digest), NULL);

    return self;
}

Class Method Details

.digest(digest, key, data) ⇒ Object 



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# File 'ossl_hmac.c', line 154

static VALUE
ossl_hmac_s_digest(VALUE klass, VALUE digest, VALUE key, VALUE data)
{
    char *buf;
    int buf_len;
	
    StringValue(key);
    StringValue(data);
    buf = HMAC(GetDigestPtr(digest), RSTRING(key)->ptr, RSTRING(key)->len,
	       RSTRING(data)->ptr, RSTRING(data)->len, NULL, &buf_len);

    return rb_str_new(buf, buf_len);
}

.hexdigest(digest, key, data) ⇒ Object 



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# File 'ossl_hmac.c', line 168

static VALUE
ossl_hmac_s_hexdigest(VALUE klass, VALUE digest, VALUE key, VALUE data)
{
    char *buf, *hexbuf;
    int buf_len;
    VALUE hexdigest;

    StringValue(key);
    StringValue(data);
	
    buf = HMAC(GetDigestPtr(digest), RSTRING(key)->ptr, RSTRING(key)->len,
	       RSTRING(data)->ptr, RSTRING(data)->len, NULL, &buf_len);
    if (string2hex(buf, buf_len, &hexbuf, NULL) != 2 * buf_len) {
	ossl_raise(eHMACError, "Cannot convert buf to hexbuf");
    }
    hexdigest = ossl_buf2str(hexbuf, 2 * buf_len);

    return hexdigest;
}

Instance Method Details

#digest ⇒ Object 



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# File 'ossl_hmac.c', line 119

static VALUE
ossl_hmac_digest(VALUE self)
{
    HMAC_CTX *ctx;
    char *buf;
    int buf_len;
    VALUE digest;
	
    GetHMAC(self, ctx);
    hmac_final(ctx, &buf, &buf_len);
    digest = ossl_buf2str(buf, buf_len);
    
    return digest;
}

#hexdigest ⇒ Object Also known as: inspect, to_s 



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# File 'ossl_hmac.c', line 134

static VALUE
ossl_hmac_hexdigest(VALUE self)
{
    HMAC_CTX *ctx;
    char *buf, *hexbuf;
    int buf_len;
    VALUE hexdigest;
	
    GetHMAC(self, ctx);
    hmac_final(ctx, &buf, &buf_len);
    if (string2hex(buf, buf_len, &hexbuf, NULL) != 2 * buf_len) {
	OPENSSL_free(buf);
	ossl_raise(eHMACError, "Memory alloc error");
    }
    OPENSSL_free(buf);
    hexdigest = ossl_buf2str(hexbuf, 2 * buf_len);

    return hexdigest;
}

#update(data) ⇒ Object Also known as: << 



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# File 'ossl_hmac.c', line 90

static VALUE
ossl_hmac_update(VALUE self, VALUE data)
{
    HMAC_CTX *ctx;

    StringValue(data);
    GetHMAC(self, ctx);
    HMAC_Update(ctx, RSTRING(data)->ptr, RSTRING(data)->len);

    return self;
}