diff --git a/math/ecm/Makefile b/math/ecm/Makefile
new file mode 100644
index 00000000000..85ad61ecf19
--- /dev/null
+++ b/math/ecm/Makefile
@@ -0,0 +1,31 @@
+# $OpenBSD: Makefile,v 1.1.1.1 2006/10/14 18:52:12 pvalchev Exp $
+
+COMMENT=	"elliptic curve method (ECM) factorization library"
+
+DISTNAME=	ecm-6.1.1
+CATEGORIES=	math
+
+HOMEPAGE=	http://gforge.inria.fr/projects/ecm/
+
+MASTER_SITES=	http://gforge.inria.fr/frs/download.php/912/
+
+MAINTAINER=	Peter Valchev <pvalchev@openbsd.org>
+
+# GPL/LGLP
+PERMIT_PACKAGE_CDROM=	Yes
+PERMIT_PACKAGE_FTP=	Yes
+PERMIT_DISTFILES_CDROM=	Yes
+PERMIT_DISTFILES_FTP=	Yes
+
+WANTLIB=	c m
+
+LIB_DEPENDS=	gmp.::devel/gmp
+
+CONFIGURE_STYLE=gnu
+CONFIGURE_ENV=	CPPFLAGS="-I${LOCALBASE}/include" \
+		LDFLAGS="-L${LOCALBASE}/lib"
+
+post-install:
+		${INSTALL_MAN} ${WRKSRC}/ecm.1 ${PREFIX}/man/man1
+
+.include <bsd.port.mk>
diff --git a/math/ecm/distinfo b/math/ecm/distinfo
new file mode 100644
index 00000000000..d1b108641c7
--- /dev/null
+++ b/math/ecm/distinfo
@@ -0,0 +1,4 @@
+MD5 (ecm-6.1.1.tar.gz) = 15ac2f5e5d26f45acb39674134fe2239
+RMD160 (ecm-6.1.1.tar.gz) = 5c16da9e3570d8cf647191b184232fd3835d4a30
+SHA1 (ecm-6.1.1.tar.gz) = 8d4c13624c3a893455c7d38da083e9f880349448
+SIZE (ecm-6.1.1.tar.gz) = 387085
diff --git a/math/ecm/pkg/DESCR b/math/ecm/pkg/DESCR
new file mode 100644
index 00000000000..ef63e1f8d18
--- /dev/null
+++ b/math/ecm/pkg/DESCR
@@ -0,0 +1,3 @@
+Integer factorization library and program using the Elliptic
+Curve Method (ECM), the P-1 or P+1 methods (which the ECM
+method can be viewed as a generalization of).
diff --git a/math/ecm/pkg/PLIST b/math/ecm/pkg/PLIST
new file mode 100644
index 00000000000..c1a2c2a7357
--- /dev/null
+++ b/math/ecm/pkg/PLIST
@@ -0,0 +1,5 @@
+@comment $OpenBSD: PLIST,v 1.1.1.1 2006/10/14 18:52:12 pvalchev Exp $
+bin/ecm
+include/ecm.h
+lib/libecm.a
+@man man/man1/ecm.1