void-packages/srcpkgs/vanitygen/patches/4b814a646873c8439d3b5ee3a2278e727575521f.patch

From 4b814a646873c8439d3b5ee3a2278e727575521f Mon Sep 17 00:00:00 2001
From: Antonio Spadaro <ilovelinux@users.noreply.github.com>
Date: Sat, 2 Jun 2018 22:27:51 +0000
Subject: [PATCH] Fix OpenSSL 1.1.0 incompatibilities (#56)

* Fix openssl 1.1.0 incompatibilities

* Replace BN_MASK2 with 0xffffffffL

* Fix other openssl 1.1.0 incompatibilities

* Fix retrocompatibility issue

* Remove BN_bn2lebinpad due to incompatibility

* Fix other incompatibility errors

* Fixed retrocompatibility (maybe). Thanks to  @DesWurstes

* Fix OpenSSL 1.1 and backwards compatibility
---
 keyconv.c   |  18 ++--
 oclengine.c | 130 ++++++++++++++++++---------
 pattern.c   | 252 ++++++++++++++++++++++++++--------------------------
 pattern.h   |   8 +-
 util.c      |  90 +++++++++----------
 vanitygen.c |  14 +--
 6 files changed, 277 insertions(+), 235 deletions(-)

diff --git a/keyconv.c b/keyconv.c
index f7475e5..394c3a0 100644
--- a/keyconv.c
+++ b/keyconv.c
@@ -1160,7 +1160,7 @@ main(int argc, char **argv)
 
 	if (key2_in) {
 		BN_CTX *bnctx;
-		BIGNUM bntmp, bntmp2;
+		BIGNUM *bntmp, *bntmp2;
 		EC_KEY *pkey2;
 
 		pkey2 = EC_KEY_new_by_curve_name(NID_secp256k1);
@@ -1182,19 +1182,19 @@ main(int argc, char **argv)
 			compressed = 1;
 		}
 
-		BN_init(&bntmp);
-		BN_init(&bntmp2);
+		bntmp = BN_new();
+		bntmp2 = BN_new();
 		bnctx = BN_CTX_new();
-		EC_GROUP_get_order(EC_KEY_get0_group(pkey), &bntmp2, NULL);
-		BN_mod_add(&bntmp,
+		EC_GROUP_get_order(EC_KEY_get0_group(pkey), bntmp2, NULL);
+		BN_mod_add(bntmp,
 			   EC_KEY_get0_private_key(pkey),
 			   EC_KEY_get0_private_key(pkey2),
-			   &bntmp2,
+			   bntmp2,
 			   bnctx);
-		vg_set_privkey(&bntmp, pkey);
+		vg_set_privkey(bntmp, pkey);
 		EC_KEY_free(pkey2);
-		BN_clear_free(&bntmp);
-		BN_clear_free(&bntmp2);
+		BN_clear_free(bntmp);
+		BN_clear_free(bntmp2);
 		BN_CTX_free(bnctx);
 	}
 
diff --git a/oclengine.c b/oclengine.c
index 4085edd..6f65846 100644
--- a/oclengine.c
+++ b/oclengine.c
@@ -43,6 +43,34 @@
 #include "pattern.h"
 #include "util.h"
 
+// Unfortunately we need this!
+#if OPENSSL_VERSION_NUMBER >= 0x0010100000
+#define PPNT_ARROW_X ppnt->X
+#define PPNT_ARROW_Y ppnt->Y
+#define PPNT_ARROW_Z ppnt->Z
+#define PPS_ARROW_X pps->X
+#define PPS_ARROW_Y pps->Y
+#define PPS_ARROW_Z pps->Z
+#define PPT_ARROW_X ppt->X
+#define PPT_ARROW_Y ppt->Y
+#define PPR_ARROW_X ppr->X
+#define PPR_ARROW_Y ppr->Y
+#define PPC_ARROW_X ppc->X
+#define PPC_ARROW_Y ppc->Y
+#else
+#define PPNT_ARROW_X &ppnt->X
+#define PPNT_ARROW_Y &ppnt->Y
+#define PPNT_ARROW_Z &ppnt->Z
+#define PPS_ARROW_X &pps->X
+#define PPS_ARROW_Y &pps->Y
+#define PPS_ARROW_Z &pps->Z
+#define PPT_ARROW_X &ppt->X
+#define PPT_ARROW_Y &ppt->Y
+#define PPR_ARROW_X &ppr->X
+#define PPR_ARROW_Y &ppr->Y
+#define PPC_ARROW_X &ppc->X
+#define PPC_ARROW_Y &ppc->Y
+#endif
 
 #define MAX_SLOT 2
 #define MAX_ARG 6
@@ -1307,14 +1335,21 @@ vg_ocl_kernel_wait(vg_ocl_context_t *vocp, int slot)
 static INLINE void
 vg_ocl_get_bignum_raw(BIGNUM *bn, const unsigned char *buf)
 {
+#if OPENSSL_VERSION_NUMBER >= 0x0010100000
+	BN_lebin2bn(buf, 32, bn);
+#else
 	bn_expand(bn, 256);
 	memcpy(bn->d, buf, 32);
 	bn->top = (32 / sizeof(BN_ULONG));
+#endif
 }
 
 static INLINE void
 vg_ocl_put_bignum_raw(unsigned char *buf, const BIGNUM *bn)
 {
+#if OPENSSL_VERSION_NUMBER >= 0x0010100000
+	BN_bn2lebinpad(bn, buf, 32);
+#else
 	int bnlen = (bn->top * sizeof(BN_ULONG));
 	if (bnlen >= 32) {
 		memcpy(buf, bn->d, 32);
@@ -1322,6 +1357,7 @@ vg_ocl_put_bignum_raw(unsigned char *buf, const BIGNUM *bn)
 		memcpy(buf, bn->d, bnlen);
 		memset(buf + bnlen, 0, 32 - bnlen);
 	}
+#endif
 }
 
 #define ACCESS_BUNDLE 1024
@@ -1351,9 +1387,15 @@ vg_ocl_get_bignum_tpa(BIGNUM *bn, const unsigned char *buf, int cell)
 
 struct ec_point_st {
 	const EC_METHOD *meth;
+#if OPENSSL_VERSION_NUMBER >= 0x0010100000
+	BIGNUM *X;
+	BIGNUM *Y;
+	BIGNUM *Z;
+#else
 	BIGNUM X;
 	BIGNUM Y;
 	BIGNUM Z;
+#endif
 	int Z_is_one;
 };
 
@@ -1361,11 +1403,11 @@ static INLINE void
 vg_ocl_get_point(EC_POINT *ppnt, const unsigned char *buf)
 {
 	static const unsigned char mont_one[] = { 0x01,0x00,0x00,0x03,0xd1 };
-	vg_ocl_get_bignum_raw(&ppnt->X, buf);
-	vg_ocl_get_bignum_raw(&ppnt->Y, buf + 32);
+	vg_ocl_get_bignum_raw(PPNT_ARROW_X, buf);
+	vg_ocl_get_bignum_raw(PPNT_ARROW_Y, buf + 32);
 	if (!ppnt->Z_is_one) {
 		ppnt->Z_is_one = 1;
-		BN_bin2bn(mont_one, sizeof(mont_one), &ppnt->Z);
+		BN_bin2bn(mont_one, sizeof(mont_one), PPNT_ARROW_Z);
 	}
 }
 
@@ -1373,8 +1415,8 @@ static INLINE void
 vg_ocl_put_point(unsigned char *buf, const EC_POINT *ppnt)
 {
 	assert(ppnt->Z_is_one);
-	vg_ocl_put_bignum_raw(buf, &ppnt->X);
-	vg_ocl_put_bignum_raw(buf + 32, &ppnt->Y);
+	vg_ocl_put_bignum_raw(buf, PPNT_ARROW_X);
+	vg_ocl_put_bignum_raw(buf + 32, PPNT_ARROW_Y);
 }
 
 static void
@@ -1662,7 +1704,7 @@ vg_ocl_verify_temporary(vg_ocl_context_t *vocp, int slot, int z_inverted)
 	unsigned char *ocl_points_in = NULL, *ocl_strides_in = NULL;
 	const EC_GROUP *pgroup;
 	EC_POINT *ppr = NULL, *ppc = NULL, *pps = NULL, *ppt = NULL;
-	BIGNUM bnz, bnez, bnm, *bnzc;
+	BIGNUM *bnz, *bnez, *bnm, *bnzc;
 	BN_CTX *bnctx = NULL;
 	BN_MONT_CTX *bnmont;
 	int ret = 0;
@@ -1675,9 +1717,9 @@ vg_ocl_verify_temporary(vg_ocl_context_t *vocp, int slot, int z_inverted)
 		0xFF,0xFF,0xFF,0xFE,0xFF,0xFF,0xFC,0x2F
 	};
 
-	BN_init(&bnz);
-	BN_init(&bnez);
-	BN_init(&bnm);
+	bnz = BN_new();
+	bnez = BN_new();
+	bnm = BN_new();
 
 	bnctx = BN_CTX_new();
 	bnmont = BN_MONT_CTX_new();
@@ -1692,13 +1734,13 @@ vg_ocl_verify_temporary(vg_ocl_context_t *vocp, int slot, int z_inverted)
 		goto out;
 	}
 
-	BN_bin2bn(raw_modulus, sizeof(raw_modulus), &bnm);
-	BN_MONT_CTX_set(bnmont, &bnm, bnctx);
+	BN_bin2bn(raw_modulus, sizeof(raw_modulus), bnm);
+	BN_MONT_CTX_set(bnmont, bnm, bnctx);
 
 	if (z_inverted) {
-		bnzc = &bnez;
+		bnzc = bnez;
 	} else {
-		bnzc = &pps->Z;
+		bnzc = PPS_ARROW_Z;
 	}
 
 	z_heap = (unsigned char *)
@@ -1726,15 +1768,15 @@ vg_ocl_verify_temporary(vg_ocl_context_t *vocp, int slot, int z_inverted)
 			EC_POINT_add(pgroup, pps, ppc, ppr, bnctx);
 			assert(!pps->Z_is_one);
 			vg_ocl_get_point_tpa(ppt, point_tmp, bx + x);
-			vg_ocl_get_bignum_tpa(&bnz, z_heap, bx + x);
+			vg_ocl_get_bignum_tpa(bnz, z_heap, bx + x);
 			if (z_inverted) {
-				BN_mod_inverse(&bnez, &pps->Z, &bnm, bnctx);
-				BN_to_montgomery(&bnez, &bnez, bnmont, bnctx);
-				BN_to_montgomery(&bnez, &bnez, bnmont, bnctx);
+				BN_mod_inverse(bnez, PPS_ARROW_Z, bnm, bnctx);
+				BN_to_montgomery(bnez, bnez, bnmont, bnctx);
+				BN_to_montgomery(bnez, bnez, bnmont, bnctx);
 			}
-			if (BN_cmp(&ppt->X, &pps->X) ||
-			    BN_cmp(&ppt->Y, &pps->Y) ||
-			    BN_cmp(&bnz, bnzc)) {
+			if (BN_cmp(PPT_ARROW_X, PPS_ARROW_X) ||
+			    BN_cmp(PPT_ARROW_Y, PPS_ARROW_Y) ||
+			    BN_cmp(bnz, bnzc)) {
 				if (!mismatches) {
 					fprintf(stderr, "Base privkey: ");
 					fdumpbn(stderr, EC_KEY_get0_private_key(
@@ -1747,33 +1789,33 @@ vg_ocl_verify_temporary(vg_ocl_context_t *vocp, int slot, int z_inverted)
 				if (!mm_r) {
 					mm_r = 1;
 					fprintf(stderr, "Row X   : ");
-					fdumpbn(stderr, &ppr->X);
+					fdumpbn(stderr, PPR_ARROW_X);
 					fprintf(stderr, "Row Y   : ");
-					fdumpbn(stderr, &ppr->Y);
+					fdumpbn(stderr, PPS_ARROW_Y);
 				}
 
 				fprintf(stderr, "Column X: ");
-				fdumpbn(stderr, &ppc->X);
+				fdumpbn(stderr, PPC_ARROW_X);
 				fprintf(stderr, "Column Y: ");
-				fdumpbn(stderr, &ppc->Y);
+				fdumpbn(stderr, PPC_ARROW_Y);
 
-				if (BN_cmp(&ppt->X, &pps->X)) {
+				if (BN_cmp(PPT_ARROW_X, PPS_ARROW_X)) {
 					fprintf(stderr, "Expect X: ");
-					fdumpbn(stderr, &pps->X);
+					fdumpbn(stderr, PPS_ARROW_X);
 					fprintf(stderr, "Device X: ");
-					fdumpbn(stderr, &ppt->X);
+					fdumpbn(stderr, PPT_ARROW_X);
 				}
-				if (BN_cmp(&ppt->Y, &pps->Y)) {
+				if (BN_cmp(PPT_ARROW_Y, PPS_ARROW_Y)) {
 					fprintf(stderr, "Expect Y: ");
-					fdumpbn(stderr, &pps->Y);
+					fdumpbn(stderr, PPS_ARROW_Y);
 					fprintf(stderr, "Device Y: ");
-					fdumpbn(stderr, &ppt->Y);
+					fdumpbn(stderr, PPT_ARROW_Y);
 				}
-				if (BN_cmp(&bnz, bnzc)) {
+				if (BN_cmp(bnz, bnzc)) {
 					fprintf(stderr, "Expect Z: ");
 					fdumpbn(stderr, bnzc);
 					fprintf(stderr, "Device Z: ");
-					fdumpbn(stderr, &bnz);
+					fdumpbn(stderr, bnz);
 				}
 			}
 		}
@@ -1798,9 +1840,9 @@ vg_ocl_verify_temporary(vg_ocl_context_t *vocp, int slot, int z_inverted)
 		EC_POINT_free(pps);
 	if (ppt)
 		EC_POINT_free(ppt);
-	BN_clear_free(&bnz);
-	BN_clear_free(&bnez);
-	BN_clear_free(&bnm);
+	BN_clear_free(bnz);
+	BN_clear_free(bnez);
+	BN_clear_free(bnm);
 	if (bnmont)
 		BN_MONT_CTX_free(bnmont);
 	if (bnctx)
@@ -1971,13 +2013,13 @@ vg_opencl_loop(vg_exec_context_t *arg)
 	if (!pbatchinc || !poffset || !pseek)
 		goto enomem;
 
-	BN_set_word(&vxcp->vxc_bntmp, ncols);
-	EC_POINT_mul(pgroup, pbatchinc, &vxcp->vxc_bntmp, NULL, NULL,
+	BN_set_word(vxcp->vxc_bntmp, ncols);
+	EC_POINT_mul(pgroup, pbatchinc, vxcp->vxc_bntmp, NULL, NULL,
 		     vxcp->vxc_bnctx);
 	EC_POINT_make_affine(pgroup, pbatchinc, vxcp->vxc_bnctx);
 
-	BN_set_word(&vxcp->vxc_bntmp, round);
-	EC_POINT_mul(pgroup, poffset, &vxcp->vxc_bntmp, NULL, NULL,
+	BN_set_word(vxcp->vxc_bntmp, round);
+	EC_POINT_mul(pgroup, poffset, vxcp->vxc_bntmp, NULL, NULL,
 		     vxcp->vxc_bnctx);
 	EC_POINT_make_affine(pgroup, poffset, vxcp->vxc_bnctx);
 
@@ -2046,12 +2088,12 @@ vg_opencl_loop(vg_exec_context_t *arg)
 	}
 
 	/* Determine rekey interval */
-	EC_GROUP_get_order(pgroup, &vxcp->vxc_bntmp, vxcp->vxc_bnctx);
-	BN_sub(&vxcp->vxc_bntmp2,
-	       &vxcp->vxc_bntmp,
+	EC_GROUP_get_order(pgroup, vxcp->vxc_bntmp, vxcp->vxc_bnctx);
+	BN_sub(vxcp->vxc_bntmp2,
+	       vxcp->vxc_bntmp,
 	       EC_KEY_get0_private_key(pkey));
-	rekey_at = BN_get_word(&vxcp->vxc_bntmp2);
-	if ((rekey_at == BN_MASK2) || (rekey_at > rekey_max))
+	rekey_at = BN_get_word(vxcp->vxc_bntmp2);
+	if ((rekey_at == 0xffffffffL) || (rekey_at > rekey_max))
 		rekey_at = rekey_max;
 	assert(rekey_at > 0);
 
diff --git a/pattern.c b/pattern.c
index b84334e..5673a7e 100644
--- a/pattern.c
+++ b/pattern.c
@@ -151,12 +151,12 @@ vg_exec_context_init(vg_context_t *vcp, vg_exec_context_t *vxcp)
 
 	vxcp->vxc_vc = vcp;
 
-	BN_init(&vxcp->vxc_bntarg);
-	BN_init(&vxcp->vxc_bnbase);
-	BN_init(&vxcp->vxc_bntmp);
-	BN_init(&vxcp->vxc_bntmp2);
+	vxcp->vxc_bntarg = BN_new();
+	vxcp->vxc_bnbase = BN_new();
+	vxcp->vxc_bntmp = BN_new();
+	vxcp->vxc_bntmp2 = BN_new();
 
-	BN_set_word(&vxcp->vxc_bnbase, 58);
+	BN_set_word(vxcp->vxc_bnbase, 58);
 
 	vxcp->vxc_bnctx = BN_CTX_new();
 	assert(vxcp->vxc_bnctx);
@@ -196,10 +196,10 @@ vg_exec_context_del(vg_exec_context_t *vxcp)
 	if (tp->vxc_stop)
 		pthread_cond_signal(&vg_thread_upcond);
 
-	BN_clear_free(&vxcp->vxc_bntarg);
-	BN_clear_free(&vxcp->vxc_bnbase);
-	BN_clear_free(&vxcp->vxc_bntmp);
-	BN_clear_free(&vxcp->vxc_bntmp2);
+	BN_clear_free(vxcp->vxc_bntarg);
+	BN_clear_free(vxcp->vxc_bnbase);
+	BN_clear_free(vxcp->vxc_bntmp);
+	BN_clear_free(vxcp->vxc_bntmp2);
 	BN_CTX_free(vxcp->vxc_bnctx);
 	vxcp->vxc_bnctx = NULL;
 	pthread_mutex_unlock(&vg_thread_lock);
@@ -225,12 +225,12 @@ void
 vg_exec_context_consolidate_key(vg_exec_context_t *vxcp)
 {
 	if (vxcp->vxc_delta) {
-		BN_clear(&vxcp->vxc_bntmp);
-		BN_set_word(&vxcp->vxc_bntmp, vxcp->vxc_delta);
-		BN_add(&vxcp->vxc_bntmp2,
+		BN_clear(vxcp->vxc_bntmp);
+		BN_set_word(vxcp->vxc_bntmp, vxcp->vxc_delta);
+		BN_add(vxcp->vxc_bntmp2,
 		       EC_KEY_get0_private_key(vxcp->vxc_key),
-		       &vxcp->vxc_bntmp);
-		vg_set_privkey(&vxcp->vxc_bntmp2, vxcp->vxc_key);
+		       vxcp->vxc_bntmp);
+		vg_set_privkey(vxcp->vxc_bntmp2, vxcp->vxc_key);
 		vxcp->vxc_delta = 0;
 	}
 }
@@ -751,20 +751,20 @@ get_prefix_ranges(int addrtype, const char *pfx, BIGNUM **result,
 	int b58pow, b58ceil, b58top = 0;
 	int ret = -1;
 
-	BIGNUM bntarg, bnceil, bnfloor;
-	BIGNUM bnbase;
+	BIGNUM *bntarg, *bnceil, *bnfloor;
+	BIGNUM *bnbase;
 	BIGNUM *bnap, *bnbp, *bntp;
 	BIGNUM *bnhigh = NULL, *bnlow = NULL, *bnhigh2 = NULL, *bnlow2 = NULL;
-	BIGNUM bntmp, bntmp2;
+	BIGNUM *bntmp, *bntmp2;
 
-	BN_init(&bntarg);
-	BN_init(&bnceil);
-	BN_init(&bnfloor);
-	BN_init(&bnbase);
-	BN_init(&bntmp);
-	BN_init(&bntmp2);
+	bntarg = BN_new();
+	bnceil = BN_new();
+	bnfloor = BN_new();
+	bnbase = BN_new();
+	bntmp = BN_new();
+	bntmp2 = BN_new();
 
-	BN_set_word(&bnbase, 58);
+	BN_set_word(bnbase, 58);
 
 	p = strlen(pfx);
 
@@ -791,20 +791,20 @@ get_prefix_ranges(int addrtype, const char *pfx, BIGNUM **result,
 
 			/* First non-zero character */
 			b58top = c;
-			BN_set_word(&bntarg, c);
+			BN_set_word(bntarg, c);
 
 		} else {
-			BN_set_word(&bntmp2, c);
-			BN_mul(&bntmp, &bntarg, &bnbase, bnctx);
-			BN_add(&bntarg, &bntmp, &bntmp2);
+			BN_set_word(bntmp2, c);
+			BN_mul(bntmp, bntarg, bnbase, bnctx);
+			BN_add(bntarg, bntmp, bntmp2);
 		}
 	}
 
 	/* Power-of-two ceiling and floor values based on leading 1s */
-	BN_clear(&bntmp);
-	BN_set_bit(&bntmp, 200 - (zero_prefix * 8));
-	BN_sub(&bnceil, &bntmp, BN_value_one());
-	BN_set_bit(&bnfloor, 192 - (zero_prefix * 8));
+	BN_clear(bntmp);
+	BN_set_bit(bntmp, 200 - (zero_prefix * 8));
+	BN_sub(bnceil, bntmp, BN_value_one());
+	BN_set_bit(bnfloor, 192 - (zero_prefix * 8));
 
 	bnlow = BN_new();
 	bnhigh = BN_new();
@@ -815,13 +815,13 @@ get_prefix_ranges(int addrtype, const char *pfx, BIGNUM **result,
 		 * numeric boundaries of the prefix.
 		 */
 
-		BN_copy(&bntmp, &bnceil);
-		bnap = &bntmp;
-		bnbp = &bntmp2;
+		BN_copy(bntmp, bnceil);
+		bnap = bntmp;
+		bnbp = bntmp2;
 		b58pow = 0;
-		while (BN_cmp(bnap, &bnbase) > 0) {
+		while (BN_cmp(bnap, bnbase) > 0) {
 			b58pow++;
-			BN_div(bnbp, NULL, bnap, &bnbase, bnctx);
+			BN_div(bnbp, NULL, bnap, bnbase, bnctx);
 			bntp = bnap;
 			bnap = bnbp;
 			bnbp = bntp;
@@ -837,11 +837,11 @@ get_prefix_ranges(int addrtype, const char *pfx, BIGNUM **result,
 			/* goto out; */
 		}
 
-		BN_set_word(&bntmp2, b58pow - (p - zero_prefix));
-		BN_exp(&bntmp, &bnbase, &bntmp2, bnctx);
-		BN_mul(bnlow, &bntmp, &bntarg, bnctx);
-		BN_sub(&bntmp2, &bntmp, BN_value_one());
-		BN_add(bnhigh, bnlow, &bntmp2);
+		BN_set_word(bntmp2, b58pow - (p - zero_prefix));
+		BN_exp(bntmp, bnbase, bntmp2, bnctx);
+		BN_mul(bnlow, bntmp, bntarg, bnctx);
+		BN_sub(bntmp2, bntmp, BN_value_one());
+		BN_add(bnhigh, bnlow, bntmp2);
 
 		if (b58top <= b58ceil) {
 			/* Fill out the upper range too */
@@ -849,16 +849,16 @@ get_prefix_ranges(int addrtype, const char *pfx, BIGNUM **result,
 			bnlow2 = BN_new();
 			bnhigh2 = BN_new();
 
-			BN_mul(bnlow2, bnlow, &bnbase, bnctx);
-			BN_mul(&bntmp2, bnhigh, &bnbase, bnctx);
-			BN_set_word(&bntmp, 57);
-			BN_add(bnhigh2, &bntmp2, &bntmp);
+			BN_mul(bnlow2, bnlow, bnbase, bnctx);
+			BN_mul(bntmp2, bnhigh, bnbase, bnctx);
+			BN_set_word(bntmp, 57);
+			BN_add(bnhigh2, bntmp2, bntmp);
 
 			/*
 			 * Addresses above the ceiling will have one
 			 * fewer "1" prefix in front than we require.
 			 */
-			if (BN_cmp(&bnceil, bnlow2) < 0) {
+			if (BN_cmp(bnceil, bnlow2) < 0) {
 				/* High prefix is above the ceiling */
 				check_upper = 0;
 				BN_free(bnhigh2);
@@ -866,15 +866,15 @@ get_prefix_ranges(int addrtype, const char *pfx, BIGNUM **result,
 				BN_free(bnlow2);
 				bnlow2 = NULL;
 			}
-			else if (BN_cmp(&bnceil, bnhigh2) < 0)
+			else if (BN_cmp(bnceil, bnhigh2) < 0)
 				/* High prefix is partly above the ceiling */
-				BN_copy(bnhigh2, &bnceil);
+				BN_copy(bnhigh2, bnceil);
 
 			/*
 			 * Addresses below the floor will have another
 			 * "1" prefix in front instead of our target.
 			 */
-			if (BN_cmp(&bnfloor, bnhigh) >= 0) {
+			if (BN_cmp(bnfloor, bnhigh) >= 0) {
 				/* Low prefix is completely below the floor */
 				assert(check_upper);
 				check_upper = 0;
@@ -885,35 +885,35 @@ get_prefix_ranges(int addrtype, const char *pfx, BIGNUM **result,
 				bnlow = bnlow2;
 				bnlow2 = NULL;
 			}			
-			else if (BN_cmp(&bnfloor, bnlow) > 0) {
+			else if (BN_cmp(bnfloor, bnlow) > 0) {
 				/* Low prefix is partly below the floor */
-				BN_copy(bnlow, &bnfloor);
+				BN_copy(bnlow, bnfloor);
 			}
 		}
 
 	} else {
-		BN_copy(bnhigh, &bnceil);
+		BN_copy(bnhigh, bnceil);
 		BN_clear(bnlow);
 	}
 
 	/* Limit the prefix to the address type */
-	BN_clear(&bntmp);
-	BN_set_word(&bntmp, addrtype);
-	BN_lshift(&bntmp2, &bntmp, 192);
+	BN_clear(bntmp);
+	BN_set_word(bntmp, addrtype);
+	BN_lshift(bntmp2, bntmp, 192);
 
 	if (check_upper) {
-		if (BN_cmp(&bntmp2, bnhigh2) > 0) {
+		if (BN_cmp(bntmp2, bnhigh2) > 0) {
 			check_upper = 0;
 			BN_free(bnhigh2);
 			bnhigh2 = NULL;
 			BN_free(bnlow2);
 			bnlow2 = NULL;
 		}
-		else if (BN_cmp(&bntmp2, bnlow2) > 0)
-			BN_copy(bnlow2, &bntmp2);
+		else if (BN_cmp(bntmp2, bnlow2) > 0)
+			BN_copy(bnlow2, bntmp2);
 	}
 
-	if (BN_cmp(&bntmp2, bnhigh) > 0) {
+	if (BN_cmp(bntmp2, bnhigh) > 0) {
 		if (!check_upper)
 			goto not_possible;
 		check_upper = 0;
@@ -924,26 +924,26 @@ get_prefix_ranges(int addrtype, const char *pfx, BIGNUM **result,
 		bnlow = bnlow2;
 		bnlow2 = NULL;
 	}
-	else if (BN_cmp(&bntmp2, bnlow) > 0) {
-		BN_copy(bnlow, &bntmp2);
+	else if (BN_cmp(bntmp2, bnlow) > 0) {
+		BN_copy(bnlow, bntmp2);
 	}
 
-	BN_set_word(&bntmp, addrtype + 1);
-	BN_lshift(&bntmp2, &bntmp, 192);
+	BN_set_word(bntmp, addrtype + 1);
+	BN_lshift(bntmp2, bntmp, 192);
 
 	if (check_upper) {
-		if (BN_cmp(&bntmp2, bnlow2) < 0) {
+		if (BN_cmp(bntmp2, bnlow2) < 0) {
 			check_upper = 0;
 			BN_free(bnhigh2);
 			bnhigh2 = NULL;
 			BN_free(bnlow2);
 			bnlow2 = NULL;
 		}
-		else if (BN_cmp(&bntmp2, bnhigh2) < 0)
-			BN_copy(bnlow2, &bntmp2);
+		else if (BN_cmp(bntmp2, bnhigh2) < 0)
+			BN_copy(bnlow2, bntmp2);
 	}
 
-	if (BN_cmp(&bntmp2, bnlow) < 0) {
+	if (BN_cmp(bntmp2, bnlow) < 0) {
 		if (!check_upper)
 			goto not_possible;
 		check_upper = 0;
@@ -954,8 +954,8 @@ get_prefix_ranges(int addrtype, const char *pfx, BIGNUM **result,
 		bnlow = bnlow2;
 		bnlow2 = NULL;
 	}
-	else if (BN_cmp(&bntmp2, bnhigh) < 0) {
-		BN_copy(bnhigh, &bntmp2);
+	else if (BN_cmp(bntmp2, bnhigh) < 0) {
+		BN_copy(bnhigh, bntmp2);
 	}
 
 	/* Address ranges are complete */
@@ -976,12 +976,12 @@ get_prefix_ranges(int addrtype, const char *pfx, BIGNUM **result,
 	}
 
 out:
-	BN_clear_free(&bntarg);
-	BN_clear_free(&bnceil);
-	BN_clear_free(&bnfloor);
-	BN_clear_free(&bnbase);
-	BN_clear_free(&bntmp);
-	BN_clear_free(&bntmp2);
+	BN_clear_free(bntarg);
+	BN_clear_free(bnceil);
+	BN_clear_free(bnfloor);
+	BN_clear_free(bnbase);
+	BN_clear_free(bntmp);
+	BN_clear_free(bntmp2);
 	if (bnhigh)
 		BN_free(bnhigh);
 	if (bnlow)
@@ -1266,7 +1266,7 @@ prefix_case_iter_next(prefix_case_iter_t *cip)
 typedef struct _vg_prefix_context_s {
 	vg_context_t		base;
 	avl_root_t		vcp_avlroot;
-	BIGNUM			vcp_difficulty;
+	BIGNUM			*vcp_difficulty;
 	int			vcp_caseinsensitive;
 } vg_prefix_context_t;
 
@@ -1294,7 +1294,7 @@ vg_prefix_context_clear_all_patterns(vg_context_t *vcp)
 	vcpp->base.vc_npatterns = 0;
 	vcpp->base.vc_npatterns_start = 0;
 	vcpp->base.vc_found = 0;
-	BN_clear(&vcpp->vcp_difficulty);
+	BN_clear(vcpp->vcp_difficulty);
 }
 
 static void
@@ -1302,7 +1302,7 @@ vg_prefix_context_free(vg_context_t *vcp)
 {
 	vg_prefix_context_t *vcpp = (vg_prefix_context_t *) vcp;
 	vg_prefix_context_clear_all_patterns(vcp);
-	BN_clear_free(&vcpp->vcp_difficulty);
+	BN_clear_free(vcpp->vcp_difficulty);
 	free(vcpp);
 }
 
@@ -1314,7 +1314,7 @@ vg_prefix_context_next_difficulty(vg_prefix_context_t *vcpp,
 
 	BN_clear(bntmp);
 	BN_set_bit(bntmp, 192);
-	BN_div(bntmp2, NULL, bntmp, &vcpp->vcp_difficulty, bnctx);
+	BN_div(bntmp2, NULL, bntmp, vcpp->vcp_difficulty, bnctx);
 
 	dbuf = BN_bn2dec(bntmp2);
 	if (vcpp->base.vc_verbose > 0) {
@@ -1337,7 +1337,7 @@ vg_prefix_context_add_patterns(vg_context_t *vcp,
 	prefix_case_iter_t caseiter;
 	vg_prefix_t *vp, *vp2;
 	BN_CTX *bnctx;
-	BIGNUM bntmp, bntmp2, bntmp3;
+	BIGNUM *bntmp, *bntmp2, *bntmp3;
 	BIGNUM *ranges[4];
 	int ret = 0;
 	int i, impossible = 0;
@@ -1346,9 +1346,9 @@ vg_prefix_context_add_patterns(vg_context_t *vcp,
 	char *dbuf;
 
 	bnctx = BN_CTX_new();
-	BN_init(&bntmp);
-	BN_init(&bntmp2);
-	BN_init(&bntmp3);
+	bntmp = BN_new();
+	bntmp2 = BN_new();
+	bntmp3 = BN_new();
 
 	npfx = 0;
 	for (i = 0; i < npatterns; i++) {
@@ -1426,16 +1426,16 @@ vg_prefix_context_add_patterns(vg_context_t *vcp,
 		npfx++;
 
 		/* Determine the probability of finding a match */
-		vg_prefix_range_sum(vp, &bntmp, &bntmp2);
-		BN_add(&bntmp2, &vcpp->vcp_difficulty, &bntmp);
-		BN_copy(&vcpp->vcp_difficulty, &bntmp2);
+		vg_prefix_range_sum(vp, bntmp, bntmp2);
+		BN_add(bntmp2, vcpp->vcp_difficulty, bntmp);
+		BN_copy(vcpp->vcp_difficulty, bntmp2);
 
 		if (vcp->vc_verbose > 1) {
-			BN_clear(&bntmp2);
-			BN_set_bit(&bntmp2, 192);
-			BN_div(&bntmp3, NULL, &bntmp2, &bntmp, bnctx);
+			BN_clear(bntmp2);
+			BN_set_bit(bntmp2, 192);
+			BN_div(bntmp3, NULL, bntmp2, bntmp, bnctx);
 
-			dbuf = BN_bn2dec(&bntmp3);
+			dbuf = BN_bn2dec(bntmp3);
 			fprintf(stderr,
 				"Prefix difficulty: %20s %s\n",
 				dbuf, patterns[i]);
@@ -1469,13 +1469,13 @@ vg_prefix_context_add_patterns(vg_context_t *vcp,
 	}
 
 	if (npfx)
-		vg_prefix_context_next_difficulty(vcpp, &bntmp, &bntmp2, bnctx);
+		vg_prefix_context_next_difficulty(vcpp, bntmp, bntmp2, bnctx);
 
 	ret = (npfx != 0);
 
-	BN_clear_free(&bntmp);
-	BN_clear_free(&bntmp2);
-	BN_clear_free(&bntmp3);
+	BN_clear_free(bntmp);
+	BN_clear_free(bntmp2);
+	BN_clear_free(bntmp3);
 	BN_CTX_free(bnctx);
 	return ret;
 }
@@ -1484,39 +1484,39 @@ double
 vg_prefix_get_difficulty(int addrtype, const char *pattern)
 {
 	BN_CTX *bnctx;
-	BIGNUM result, bntmp;
+	BIGNUM *result, *bntmp;
 	BIGNUM *ranges[4];
 	char *dbuf;
 	int ret;
 	double diffret = 0.0;
 
 	bnctx = BN_CTX_new();
-	BN_init(&result);
-	BN_init(&bntmp);
+	result = BN_new();
+	bntmp = BN_new();
 
 	ret = get_prefix_ranges(addrtype,
 				pattern, ranges, bnctx);
 
 	if (ret == 0) {
-		BN_sub(&bntmp, ranges[1], ranges[0]);
-		BN_add(&result, &result, &bntmp);
+		BN_sub(bntmp, ranges[1], ranges[0]);
+		BN_add(result, result, bntmp);
 		if (ranges[2]) {
-			BN_sub(&bntmp, ranges[3], ranges[2]);
-			BN_add(&result, &result, &bntmp);
+			BN_sub(bntmp, ranges[3], ranges[2]);
+			BN_add(result, result, bntmp);
 		}
 		free_ranges(ranges);
 
-		BN_clear(&bntmp);
-		BN_set_bit(&bntmp, 192);
-		BN_div(&result, NULL, &bntmp, &result, bnctx);
+		BN_clear(bntmp);
+		BN_set_bit(bntmp, 192);
+		BN_div(result, NULL, bntmp, result, bnctx);
 
-		dbuf = BN_bn2dec(&result);
+		dbuf = BN_bn2dec(result);
 		diffret = strtod(dbuf, NULL);
 		OPENSSL_free(dbuf);
 	}
 
-	BN_clear_free(&result);
-	BN_clear_free(&bntmp);
+	BN_clear_free(result);
+	BN_clear_free(bntmp);
 	BN_CTX_free(bnctx);
 	return diffret;
 }
@@ -1535,10 +1535,10 @@ vg_prefix_test(vg_exec_context_t *vxcp)
 	 * check code.
 	 */
 
-	BN_bin2bn(vxcp->vxc_binres, 25, &vxcp->vxc_bntarg);
+	BN_bin2bn(vxcp->vxc_binres, 25, vxcp->vxc_bntarg);
 
 research:
-	vp = vg_prefix_avl_search(&vcpp->vcp_avlroot, &vxcp->vxc_bntarg);
+	vp = vg_prefix_avl_search(&vcpp->vcp_avlroot, vxcp->vxc_bntarg);
 	if (vp) {
 		if (vg_exec_context_upgrade_lock(vxcp))
 			goto research;
@@ -1558,20 +1558,20 @@ vg_prefix_test(vg_exec_context_t *vxcp)
 		if (vcpp->base.vc_remove_on_match) {
 			/* Subtract the range from the difficulty */
 			vg_prefix_range_sum(vp,
-					    &vxcp->vxc_bntarg,
-					    &vxcp->vxc_bntmp);
-			BN_sub(&vxcp->vxc_bntmp,
-			       &vcpp->vcp_difficulty,
-			       &vxcp->vxc_bntarg);
-			BN_copy(&vcpp->vcp_difficulty, &vxcp->vxc_bntmp);
+					    vxcp->vxc_bntarg,
+					    vxcp->vxc_bntmp);
+			BN_sub(vxcp->vxc_bntmp,
+			       vcpp->vcp_difficulty,
+			       vxcp->vxc_bntarg);
+			BN_copy(vcpp->vcp_difficulty, vxcp->vxc_bntmp);
 
 			vg_prefix_delete(&vcpp->vcp_avlroot,vp);
 			vcpp->base.vc_npatterns--;
 
 			if (!avl_root_empty(&vcpp->vcp_avlroot))
 				vg_prefix_context_next_difficulty(
-					vcpp, &vxcp->vxc_bntmp,
-					&vxcp->vxc_bntmp2,
+					vcpp, vxcp->vxc_bntmp,
+					vxcp->vxc_bntmp2,
 					vxcp->vxc_bnctx);
 			vcpp->base.vc_pattern_generation++;
 		}
@@ -1652,7 +1652,7 @@ vg_prefix_context_new(int addrtype, int privtype, int caseinsensitive)
 		vcpp->base.vc_test = vg_prefix_test;
 		vcpp->base.vc_hash160_sort = vg_prefix_hash160_sort;
 		avl_root_init(&vcpp->vcp_avlroot);
-		BN_init(&vcpp->vcp_difficulty);
+		vcpp->vcp_difficulty = BN_new();
 		vcpp->vcp_caseinsensitive = caseinsensitive;
 	}
 	return &vcpp->base;
@@ -1778,21 +1778,21 @@ vg_regex_test(vg_exec_context_t *vxcp)
 	unsigned char hash1[32], hash2[32];
 	int i, zpfx, p, d, nres, re_vec[9];
 	char b58[40];
-	BIGNUM bnrem;
+	BIGNUM *bnrem;
 	BIGNUM *bn, *bndiv, *bnptmp;
 	int res = 0;
 
 	pcre *re;
 
-	BN_init(&bnrem);
+	bnrem = BN_new();
 
 	/* Hash the hash and write the four byte check code */
 	SHA256(vxcp->vxc_binres, 21, hash1);
 	SHA256(hash1, sizeof(hash1), hash2);
 	memcpy(&vxcp->vxc_binres[21], hash2, 4);
 
-	bn = &vxcp->vxc_bntmp;
-	bndiv = &vxcp->vxc_bntmp2;
+	bn = vxcp->vxc_bntmp;
+	bndiv = vxcp->vxc_bntmp2;
 
 	BN_bin2bn(vxcp->vxc_binres, 25, bn);
 
@@ -1801,11 +1801,11 @@ vg_regex_test(vg_exec_context_t *vxcp)
 	p = sizeof(b58) - 1;
 	b58[p] = '\0';
 	while (!BN_is_zero(bn)) {
-		BN_div(bndiv, &bnrem, bn, &vxcp->vxc_bnbase, vxcp->vxc_bnctx);
+		BN_div(bndiv, bnrem, bn, vxcp->vxc_bnbase, vxcp->vxc_bnctx);
 		bnptmp = bn;
 		bn = bndiv;
 		bndiv = bnptmp;
-		d = BN_get_word(&bnrem);
+		d = BN_get_word(bnrem);
 		b58[--p] = vg_b58_alphabet[d];
 	}
 	while (zpfx--) {
@@ -1878,7 +1878,7 @@ vg_regex_test(vg_exec_context_t *vxcp)
 		res = 1;
 	}
 out:
-	BN_clear_free(&bnrem);
+	BN_clear_free(bnrem);
 	return res;
 }
 
diff --git a/pattern.h b/pattern.h
index 3ce2d1f..0b604ea 100644
--- a/pattern.h
+++ b/pattern.h
@@ -51,10 +51,10 @@ struct _vg_exec_context_s {
 	EC_KEY				*vxc_key;
 	int				vxc_delta;
 	unsigned char			vxc_binres[28];
-	BIGNUM				vxc_bntarg;
-	BIGNUM				vxc_bnbase;
-	BIGNUM				vxc_bntmp;
-	BIGNUM				vxc_bntmp2;
+	BIGNUM				*vxc_bntarg;
+	BIGNUM				*vxc_bnbase;
+	BIGNUM				*vxc_bntmp;
+	BIGNUM				*vxc_bntmp2;
 
 	vg_exec_context_threadfunc_t	vxc_threadfunc;
 	pthread_t			vxc_pthread;
diff --git a/util.c b/util.c
index 4f3cbb8..35cd592 100644
--- a/util.c
+++ b/util.c
@@ -110,19 +110,19 @@ vg_b58_encode_check(void *buf, size_t len, char *result)
 
 	BN_CTX *bnctx;
 	BIGNUM *bn, *bndiv, *bntmp;
-	BIGNUM bna, bnb, bnbase, bnrem;
+	BIGNUM *bna, *bnb, *bnbase, *bnrem;
 	unsigned char *binres;
 	int brlen, zpfx;
 
 	bnctx = BN_CTX_new();
-	BN_init(&bna);
-	BN_init(&bnb);
-	BN_init(&bnbase);
-	BN_init(&bnrem);
-	BN_set_word(&bnbase, 58);
+	bna = BN_new();
+	bnb = BN_new();
+	bnbase = BN_new();
+	bnrem = BN_new();
+	BN_set_word(bnbase, 58);
 
-	bn = &bna;
-	bndiv = &bnb;
+	bn = bna;
+	bndiv = bnb;
 
 	brlen = (2 * len) + 4;
 	binres = (unsigned char*) malloc(brlen);
@@ -154,11 +154,11 @@ vg_b58_encode_check(void *buf, size_t len, char *result)
 
 	p = brlen;
 	while (!BN_is_zero(bn)) {
-		BN_div(bndiv, &bnrem, bn, &bnbase, bnctx);
+		BN_div(bndiv, bnrem, bn, bnbase, bnctx);
 		bntmp = bn;
 		bn = bndiv;
 		bndiv = bntmp;
-		d = BN_get_word(&bnrem);
+		d = BN_get_word(bnrem);
 		binres[--p] = vg_b58_alphabet[d];
 	}
 
@@ -170,10 +170,10 @@ vg_b58_encode_check(void *buf, size_t len, char *result)
 	result[brlen - p] = '\0';
 
 	free(binres);
-	BN_clear_free(&bna);
-	BN_clear_free(&bnb);
-	BN_clear_free(&bnbase);
-	BN_clear_free(&bnrem);
+	BN_clear_free(bna);
+	BN_clear_free(bnb);
+	BN_clear_free(bnbase);
+	BN_clear_free(bnrem);
 	BN_CTX_free(bnctx);
 }
 
@@ -185,7 +185,7 @@ vg_b58_decode_check(const char *input, void *buf, size_t len)
 {
 	int i, l, c;
 	unsigned char *xbuf = NULL;
-	BIGNUM bn, bnw, bnbase;
+	BIGNUM *bn, *bnw, *bnbase;
 	BN_CTX *bnctx;
 	unsigned char hash1[32], hash2[32];
 	unsigned char groestlhash1[64];
@@ -193,10 +193,10 @@ vg_b58_decode_check(const char *input, void *buf, size_t len)
 	int zpfx;
 	int res = 0;
 
-	BN_init(&bn);
-	BN_init(&bnw);
-	BN_init(&bnbase);
-	BN_set_word(&bnbase, 58);
+	bn = BN_new();
+	bnw = BN_new();
+	bnbase = BN_new();
+	BN_set_word(bnbase, 58);
 	bnctx = BN_CTX_new();
 
 	/* Build a bignum from the encoded value */
@@ -207,10 +207,10 @@ vg_b58_decode_check(const char *input, void *buf, size_t len)
 		c = vg_b58_reverse_map[(int)input[i]];
 		if (c < 0)
 			goto out;
-		BN_clear(&bnw);
-		BN_set_word(&bnw, c);
-		BN_mul(&bn, &bn, &bnbase, bnctx);
-		BN_add(&bn, &bn, &bnw);
+		BN_clear(bnw);
+		BN_set_word(bnw, c);
+		BN_mul(bn, bn, bnbase, bnctx);
+		BN_add(bn, bn, bnw);
 	}
 
 	/* Copy the bignum to a byte buffer */
@@ -221,7 +221,7 @@ vg_b58_decode_check(const char *input, void *buf, size_t len)
 			break;
 		zpfx++;
 	}
-	c = BN_num_bytes(&bn);
+	c = BN_num_bytes(bn);
 	l = zpfx + c;
 	if (l < 5)
 		goto out;
@@ -231,7 +231,7 @@ vg_b58_decode_check(const char *input, void *buf, size_t len)
 	if (zpfx)
 		memset(xbuf, 0, zpfx);
 	if (c)
-		BN_bn2bin(&bn, xbuf + zpfx);
+		BN_bn2bin(bn, xbuf + zpfx);
 
 	/* Check the hash code */
 	l -= 4;
@@ -270,9 +270,9 @@ vg_b58_decode_check(const char *input, void *buf, size_t len)
 out:
 	if (xbuf)
 		free(xbuf);
-	BN_clear_free(&bn);
-	BN_clear_free(&bnw);
-	BN_clear_free(&bnbase);
+	BN_clear_free(bn);
+	BN_clear_free(bnw);
+	BN_clear_free(bnbase);
 	BN_CTX_free(bnctx);
 	return res;
 }
@@ -420,7 +420,7 @@ vg_set_privkey(const BIGNUM *bnpriv, EC_KEY *pkey)
 int
 vg_decode_privkey(const char *b58encoded, EC_KEY *pkey, int *addrtype)
 {
-	BIGNUM bnpriv;
+	BIGNUM *bnpriv;
 	unsigned char ecpriv[48];
 	int res, ret;
 
@@ -430,10 +430,10 @@ vg_decode_privkey(const char *b58encoded, EC_KEY *pkey, int *addrtype)
 
 	ret = res - 32;
 
-	BN_init(&bnpriv);
-	BN_bin2bn(ecpriv + 1, 32, &bnpriv);
-	res = vg_set_privkey(&bnpriv, pkey);
-	BN_clear_free(&bnpriv);
+	bnpriv = BN_new();
+	BN_bin2bn(ecpriv + 1, 32, bnpriv);
+	res = vg_set_privkey(bnpriv, pkey);
+	BN_clear_free(bnpriv);
 	*addrtype = ecpriv[0];
 	return ret;
 }
@@ -632,15 +632,15 @@ vg_protect_crypt(int parameter_group,
 		salt_len = 4;
 		hmac_len = 8;
 		hmac_keylen = 16;
-		ciphertext_len = ((plaintext_len + cipher->block_size - 1) /
-				  cipher->block_size) * cipher->block_size;
+		ciphertext_len = ((plaintext_len + EVP_CIPHER_block_size(cipher) - 1) /
+				  EVP_CIPHER_block_size(cipher)) * EVP_CIPHER_block_size(cipher);
 		pkcs7_padding = 0;
 		hmac_digest = EVP_sha256();
 	} else {
 		/* PKCS-compliant encoding */
 		salt_len = 8;
-		ciphertext_len = ((plaintext_len + cipher->block_size) /
-				  cipher->block_size) * cipher->block_size;
+		ciphertext_len = ((plaintext_len + EVP_CIPHER_block_size(cipher)) /
+				  EVP_CIPHER_block_size(cipher)) * EVP_CIPHER_block_size(cipher);
 		hmac_digest = NULL;
 	}
 
@@ -666,12 +666,12 @@ vg_protect_crypt(int parameter_group,
 			  salt, salt_len,
 			  params->iterations,
 			  pbkdf_digest,
-			  cipher->key_len + cipher->iv_len + hmac_keylen,
+			  EVP_CIPHER_key_length(cipher) + EVP_CIPHER_iv_length(cipher) + hmac_keylen,
 			  keymaterial);
 
 	if (!EVP_CipherInit(ctx, cipher,
 			    keymaterial,
-			    keymaterial + cipher->key_len,
+			    keymaterial + EVP_CIPHER_key_length(cipher),
 			    enc)) {
 		fprintf(stderr, "ERROR: could not configure cipher\n");
 		goto out;
@@ -707,7 +707,7 @@ vg_protect_crypt(int parameter_group,
 	if (hmac_len) {
 		hlen = sizeof(hmac);
 		HMAC(hmac_digest,
-		     keymaterial + cipher->key_len + cipher->iv_len,
+		     keymaterial + EVP_CIPHER_key_length(cipher) + EVP_CIPHER_iv_length(cipher),
 		     hmac_keylen,
 		     enc ? data_in : data_out, plaintext_len,
 		     hmac, &hlen);
@@ -786,7 +786,7 @@ vg_protect_decode_privkey(EC_KEY *pkey, int *keytype,
 {
 	unsigned char ecpriv[64];
 	unsigned char ecenc[128];
-	BIGNUM bn;
+	BIGNUM *bn;
 	int restype;
 	int res;
 
@@ -810,10 +810,10 @@ vg_protect_decode_privkey(EC_KEY *pkey, int *keytype,
 
 	res = 1;
 	if (pkey) {
-		BN_init(&bn);
-		BN_bin2bn(ecpriv, 32, &bn);
-		res = vg_set_privkey(&bn, pkey);
-		BN_clear_free(&bn);
+		bn = BN_new();
+		BN_bin2bn(ecpriv, 32, bn);
+		res = vg_set_privkey(bn, pkey);
+		BN_clear_free(bn);
 		OPENSSL_cleanse(ecpriv, sizeof(ecpriv));
 	}
 
diff --git a/vanitygen.c b/vanitygen.c
index fb7925a..992e5d7 100644
--- a/vanitygen.c
+++ b/vanitygen.c
@@ -94,8 +94,8 @@ vg_thread_loop(void *arg)
 		exit(1);
 	}
 
-	BN_set_word(&vxcp->vxc_bntmp, ptarraysize);
-	EC_POINT_mul(pgroup, pbatchinc, &vxcp->vxc_bntmp, NULL, NULL,
+	BN_set_word(vxcp->vxc_bntmp, ptarraysize);
+	EC_POINT_mul(pgroup, pbatchinc, vxcp->vxc_bntmp, NULL, NULL,
 		     vxcp->vxc_bnctx);
 	EC_POINT_make_affine(pgroup, pbatchinc, vxcp->vxc_bnctx);
 
@@ -139,13 +139,13 @@ vg_thread_loop(void *arg)
 			npoints = 0;
 
 			/* Determine rekey interval */
-			EC_GROUP_get_order(pgroup, &vxcp->vxc_bntmp,
+			EC_GROUP_get_order(pgroup, vxcp->vxc_bntmp,
 					   vxcp->vxc_bnctx);
-			BN_sub(&vxcp->vxc_bntmp2,
-			       &vxcp->vxc_bntmp,
+			BN_sub(vxcp->vxc_bntmp2,
+			       vxcp->vxc_bntmp,
 			       EC_KEY_get0_private_key(pkey));
-			rekey_at = BN_get_word(&vxcp->vxc_bntmp2);
-			if ((rekey_at == BN_MASK2) || (rekey_at > rekey_max))
+			rekey_at = BN_get_word(vxcp->vxc_bntmp2);
+			if ((rekey_at == 0xffffffffL) || (rekey_at > rekey_max))
 				rekey_at = rekey_max;
 			assert(rekey_at > 0);